1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39418f090f033485f788d07d0d341342ce57548cf5f62e7ffc619ec41c910357. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbf5ce35-dfbf-42d1-9172-bbbde1b64012.json and https://artists.proofprofile.net/proofs/artist/dbf5ce35-dfbf-42d1-9172-bbbde1b64012.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1b388ee5522ec2ff20e33758a7017c14f6ba06009b282ed2c3398ad76d49f5. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9213ce0822575b1cafa732353f5cee7b6c3f7d40ab00b375b558d992f1de65c9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:33:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a94a9bf86ab2adc0ed97e998d50c558aa506c499b83bd20c10f2a87e361e63f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb84f7ff813d0a4f7a6fb5391567c15a1a065b9bb5cd51e53171e70957723469. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5735001014d4c1eb7ae9cee8eb416b2c80657411df31c49b12fb416aeae4d2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f40ef0ac35cadfa737ed3c60a829f388a3cb0a5700fc1d19707b750f5b15ab. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680800805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeeecfacac780dbecdb4de69038bde2e9f38ae1c0c4b58bd3aabd1c18be07773. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680800807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615c39491f7ad9b0ebea8271a66cd4d43f66fd7422cd683af447d815df4869f7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680800809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06e1aa79350383911364f3947a2bb4f6f584467bab5314d32eda2192ad68545. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680800810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8006cc888426ec8cb95140c52f7c5caece913a1becf549103caffd8094149616. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680800811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde551bd3009d1d6911bd93e7c2c1f1b8c5c55d86f674795e9acafa02714bb36. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:59:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680800812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ef5581e28acd9e6a132e6ae0405f55eb2254d0faf33a9d5b88948e0972b622. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA680800813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2609d546b4d313b37255929e7901be8c295d2700825b8455616f90b02484b233. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:09:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC591100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89132f70114b7d8695df77a070d09f0f05ade51e8f352acd9f521b750696701. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC591400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0347a35677486c6cbfe63724e3267115d007951395766ba71211f0515cc5a57. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC591400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb8a9dd4c5ffd518b6a9d5c3eae4f53aec635dd1b2abefcbe5d61b0a28a42aa. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:49:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC591400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa578ebd8baf8a04674bb88b814b8e62fdaaf03f09b659eb80c9de1d61f11ec. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC591400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4d22bba720afdb1ff28f4fae94e82f8c7e819b56509bb16e45cf922181a3ae. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC591400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf297cb0762c4656cacbd3b63e66222ebe3cc32c0d994a8bd9d57e90f4b77fbe. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLK681600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf4cfe8a04e9cde47e917bdbf730a85526eda09ed2a776e16b61815d9bec5fe. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:04:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLK681600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4702c9a85b89c96cb78b0b9024aca8bdda78986995094af8809f7d54af1084. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLK681600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc2f6ad43f2672c0b834524da9c3435324f45a44511ba68b40cb56837b38cdf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLK681600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e3fbf3a726739073c562f216f40f04ed370aca78f5a6e43080d976f5854e94. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:05:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLK681600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c480b0a8b837d3472e88ee9c60057f6c6605b5603dcbca2c022a5fbadde7e32. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:02:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLK681600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b90c51996eafd77ac3c2dba5bf60ffe2778556904a03312463f7ac0dedbc9b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLK681800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11f4c861b545f5aef46eb60b41db2c35c2904c78e25ef36a3286aeb199b8860. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLK681800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2595c05ba4a12869608592d6f86a51a83be2456ad368442d2786b2a6c1b96061. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC591900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bc0773e77f1902a5f92532968c94f5349c01c37fdb75687b0bca878a15dced. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC591900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceab6711262fd75aadfea5df8ecfb7ab83157ef735a2415202d179e29e328b4e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2064769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de1a0e826e3733ac09fed28875a842af120b8f4c2ea8e04e51d3a2ee0292d3d. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB822000525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b5fef8dd2dea483cf0067f55e42a9e82fbb56730d667a7364d2660040d9ebd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb286d319331fb3f63bb2ef10e0539dac85ee6eb8dfb21a53a4f2549bc765567. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1e74b74794ca2de21490d4209b3fe18ba5cdfb949d318a02faa984a4e320a7. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3dbca0329914830c31d3f225fd3667c2d0fac66a0702fee503a14e78317a96. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:32:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41988f317f762eddcba9e0aa050a486ef121ccf5e184b9f457203c0e8cdbe05. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6213b21c13f431cb7d0bb8896dd402ca3b6495c312686e031f05c163f1a3eaa6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff02cf306fd3014983aae7317a8244c3fcf5c7200feac1af297ffc49dd751436. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:11:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66adc1a6b55a4cc5fdf15ffaa30e5343b101bc5be119974ea7d2b27320243bfb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92665e58b60247d1ae7e9056e9f45f240db3e6bfeb29f2d97ae8c414804de9f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e0bae0dfdea324a503fb98c60edb98d5e0fd9ea3e65067eceb537e7d5585ad. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6856cf3146bc1f5112d3d5e150555bcae82f7bd6d7abc12933fc2487f62543a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072198335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8930cc7f30b0db8fcf672ac5311fa953fd2b6bceb124df0d4337ce3f126ab02. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052020919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f424a095028869d613078c6630bd4ea5de8fa3423d8057379aeb88c160597b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072194172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fa636077fa467f09138e5a80a8eee46173689597649a4cb2e7f73d7e3b5922. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762105577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc6158093edaab6e9c23413f4fa3e1c8e27df04c2e42a05c7909f05b2103152. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2064770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af71fac62d098a252657a9c719cf94752ac8c9775f620ab8acd4065b6145d23. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:01:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762105578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f4ccff75b45e8d02533bfc055be70b5f5a07c7d550fa7717f0c79d866de6df. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:09:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762105579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc113b69ef4d5d088b015ec2254ea22172d123837ba663426a32aeb464a675d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2288902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9309e9b38839b2ebc73a3c897312fec8cbc50246469a4c8e889fd44fc15c1f38. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062297114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ea8511daa3cb4c3ee3d1f8b793c04c70b4005fa2462600b8b8a27b5ec3ec99. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0637315022a4cd4e5e9e72365523a88c716dfc49b87bf94beb2bb18bef95ee52. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87746b6a2d73b4a170e93eb18c94a241395569483858351dacc01900f25609c4. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50430644dcdd0be0771692b0e1f4716757f59da73b24891cec84dce6fbf6f9b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56cc4451fb0c46b86af6c798d50b409aca23db7ef3c1bfdc816d653c9534d5d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2206c3b51b91468caa1c68fa399066e0d4f29f27f4cb9fe5f5fe0932337cf6a2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf0936a5b5b1ebfbf84423c52e369167b159fecb466449ee7cb5be248867732. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0dc62bd96bb3e37803bd6cc361c5367bc2f997818461c42970be5556f0db06. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0117fc3cd43126ac71346bb69148e9d7d9a64cd76665bbdfe5e97fcc86e939. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d421fa98981f2ea6bb05530d5bed528f4de03207a6791bc41c90de24a308a6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:37:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1c9565b3309fffb21d220d068c5a06436966466eabec32f6ed962de1d4824a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2512986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c6616e5537670f41b46c4dc17f7112809a064e456595bf2a193b364c5c2659. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA391146008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11316a75a6bc3d2750a6f53c552fc045d92404ff43c1e127bbaab0c70a769a3a. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA391146009.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979c1de5eca3293f5ad5716f8be92cbcf678958ddf9318fcdfb196839823bdaf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA391146010.