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 0x4e297444fdc4cec306eae1072adfb84bcb61ae8c6171e0ca718c97865ef525cb. 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/3de8091c-e617-4068-8d8e-064221293ba0.json and https://artists.proofprofile.net/proofs/artist/3de8091c-e617-4068-8d8e-064221293ba0.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 0x510aaf6292b978b762f6fa27f6c8051d8084ee0f736b684b83f38bdad6ecb60e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USJ930170104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa335ad3f317492bde63f6d8db4fb31df1919b5e74ffc726b0b1171f5b54e0508. 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/USJ939810080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a0aff71e736ddf36dfcfb3716518b511f3a7ada5e5d03befa5231bb4542f3f. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/USJ930370306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a016db62fbf84cd063a3c244063508a450e85ffeb4574cd1b0a62bfab14233. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USJ939810075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ec5daac92a130051a64ec671c7a00f3f81392fd12d306d6674924d8365a74a. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:38:05Z), 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/USJ939810085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ed5410dd1b14f510b8ccc68b1276a780b1a33cb9c29b6204e1993f4352a4be. 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/USJ3V1259619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07bdcd1d5848737fb733987aa06bef3dc76f16e7cd0a7d574755c074876f1bb. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/USHM91736417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37820c2f450f14baae34ce44f87714c0258173f5b060ffaf02e31a1db7801bfa. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/USL4R1909381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e67128561c19a2e7dc671be868c16285b0fabbe3d1bcca9ea9c173d7242556. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AUMEV2160326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28cc528a1527720179a67d29730b700c3a57b4d44573cc6f6ef3b81def4fc32. 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/AUMEV2160329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1190226d5ced558652ffada6187db5ad6158ef468a41e60b2548e170f40310d9. 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/AUMEV2160331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973792e5706c792d328302feeec1994ee5c271e64134a6c7eaad7bfea852d45a. 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/AUMEV2160332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba461c70502b8b3357837b12b0c48ae23775f17fa57f3fb5da51bb8cb1d7078. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/USHM92164396.
O Quiza Simplemente Le Regale un Rosa - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221ca042b9a94f842631484b6fc9d67ae8ffd7f92006ffb8e39caec162b6bc51. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USHM92164397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb645653948a6232bfb980521bb24db3e0d84208f867d3a2dd4a38bee7c22dd. 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/USHM92164401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9201c8b2d4b632978f29efdb7828471d1e5d2802245cc3f0e7c1ead1e1dfc912. 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/USCGH2261130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d606e6f478a9b8f84c18eb797df793dd52f98082c642916310e168febf11903. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USCGH2261131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ec1a69a995350af36d7cc06f802b8d2964a08bfa027cf2770dae4f29513e00. 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/USCGH2261133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa938c34b0f4de4da707db6760926a49f07ac9db500eeb67eb7b45b6d40d50165. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USCGJ2209411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24490c5f2ecc6aefb28c805a9860a2e8e8a11c5c8dac535e85f3c3cbbed86b94. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USDY42302222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48b85644c2bef06ece2de5bfa39a2a39177fb3bd409ec75197a0bbd0c7b8b07. 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/TCAHB2382647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c0353f0f270a5f2142567c4d081dc3c84ff69cdd625f7a4ed2b106ddf88d5d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:01:12Z), 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/TCAHD2384493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ec14ca643146a352a58b08d2f12f21319072c4216ed596e85ef899f03b95bc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNFJ2405218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247b255f90f77b100c617e07dd6dec881db38de2903d898e331077ce6568b070. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZNFJ2405219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2d92687a152fff34c7cf9f8556e25cfdd074b20640c20bfaa0d4880a05fbfb. 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/QZNFJ2405194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09036b5c8d15dfa36602d4fd2e9948ed20c54a5a1bf968f96191c9bbf46cb2cf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNFJ2405195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fed08a6ac2a024562a9a4d7468be8b228831c3e26a2c6e6fab9174ea60a4857. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:53:56Z), 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/QZNFJ2405197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b15b05c75a50dcf7601ff8e6c070207ca173eb5d8b5912e9c2d68264e633bd. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZNFJ2405200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81e24847061fabe6909bdb76c4b48b2c86b7205dea26df1c4a64741bd4cac0b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZNFJ2405201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ae5701e9ecfd97f5b84015205e645ee265848387258822eb8a3a0ef0fbef6d. 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/QZNFJ2405202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586e693a04e0b560631f4fdfc1970406a0cb9e847eb91b8587954200be4826da. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNFJ2405203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79b564e0c3dd8e1de758e027fe2d9c3932b53c23f66ebe5870dbb2e5ca71b27. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNFJ2405205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6cea274d7328281abda058855a7028130ba6a68f795c8b05853bbab01e52b2. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/TCAJS2548327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cbf469253d38bdbbae30a599b375c9723fef9ab08f09c6f63dbfaeed11ff8e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5752000951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17456b83e94ad44c47c4f9b9ec450474572defcef6b086565e8ae37afa40d77. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5752000952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545455914e1c300501513161b4fb32b1345bc85bbebf8bca8d55fd0d21092ac8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SE5752000955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5228afef4a220fa9ca323fd4efac0afd19ac8e90f2c3f7f056966ec0b6759c12. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE5752000956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc866604d41697f2c6779b63e75547ac1c81033009158ad5c2deda85b5e0ff4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5752000958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ca9a63f9a236397c1c4d3f02c0bdc49b0bcb64eb1635e8042a556de39b2a75. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5752000960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be5a067de2383a1f3dc2da60242e08baf43ceb9fe6cf5936d66a380cf60a7d3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5752000961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe924a9f95675c20e070e0da43474e7cdaf743dea1f9b8b8901804ce85a13dcbf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5752000964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc606a4b068cd33cc5c7ec4c503a4fcae6bf48a6b5b8a1b10dbe0a46fcf1dc42a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/SE5752000953.
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 0x2a126ece08a10ecefd1949f858ef5752d5de8dff76eae3a87542ca0b0ab7be1f. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/SE5752000950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad980c7c48ff48711b06aacf308507c6287a79820c847bfb0cea4ebb8b9e7437. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/SE5752000957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de63c234289251c970df171a503d3232bb1c51516d818d98f885c44c1ec2e47. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE5752000959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2b5d2018b118d337646986bca3f86b2a2e98b79e367941fa60b887521cd10f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SE5752000962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0786b9a6836f176419f0294b64a9d28023d5c417627bfeb903b7c88ae1f88f9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/SE5752000963.