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 0xc73f64000262846116f81b640dcd812b3c78f7204c5cf4ce5dcd68ca4f9a9d32. 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/741afd1b-b63a-4444-8810-ae17a6a37072.json and https://artists.proofprofile.net/proofs/artist/741afd1b-b63a-4444-8810-ae17a6a37072.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 0x7b4ae12f80fe3b7bb667cd77d9f86c7f3d73c5035ce0efe24f494483fc97d94e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTAT2117330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c6fdd6179df8bb97e826e91376e2621f054f53b3ccfcf14c32894fffcce412. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:56:59Z), 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/QZTAT2117332.
Con Un Polvo y Otro Polvo (Con Tololoche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c211186a3c646e33a2d652ed2c67a16686601904a1e250ce8584e05cf7501fe. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZDA52308592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0193922e5a48005c8a8f7d512683f88c3919290b3dbb1c9211131ca44514813. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:04:33Z), 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/ARC571901788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0807b3f16064eb459602bf726e9a7512f66a14e6ac02a825b293cd7b051e41. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:06:38Z), 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/ARC571901791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822c60b84820ede340cb2bb976bb5a77cd26f55c8b120963160ed06d524e1874. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:09:18Z), 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/ARC571901794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3002d8fdd186aca6cbe77c98d2ba48310e9506e6252482dc359cef1dd5975af2. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/ARC571901789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8bc04c801bfc3dd01194e03f9b86e48978ccb2852784a36cde5a075152167b. 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/ARC571901795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501a90b2051762abb902d8756ea330fabf351a54e4743a966e67abab2679d3eb. 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/ARC572004376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5b66f9e68a6282304facffdf9e0c22d261d233e46091652c2ba81fc10c5e19. 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/ARC572004374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70871cf9d2e8c4ebcf8f8a44d45a4371ed17115d337980f509155f409b603622. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:45:29Z), 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/ARC572004377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae21ed0a02780529fe020fd0dfebe6431c6b4b78b52ef7ef5fc3475b84d2ae2. 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/ARC572004379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e44db484e44c7f7f423c375547c11e229911cdf50d82686484de39a3b1b250. 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/ARC572004380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac718f947b66bc86dcdb089e6273eecf13eb10a77a1d4f87a8ee95ff5c113335. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:48:30Z), 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/ARC572004383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65acd3913d882374ac9a01cb5535ca60cf3165f07939a0441dc4510cc1e3d30. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARC572004382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e882fcc0faea8d854299747f3efbeb6cef6ace548756b51b21bef43a9329125. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARC572004384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f7693917ccafa63e48c60349f882caf6e9b9cc19fe4625fa7183a214bac5df. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZHNC2497052.
En Vivo Desde Rancho San Roman (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d2a11c6f2bcb07f502f5c89c1592300e72f83dddcd55727de3fea01442d3cc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZMEQ2452915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0075ff3fcbb6fb780d45d0a08c34c2f7bae1884a4a9bec709113e54ee814c4a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNA2539315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5ed6cec361c7b38635d94200448d78b6a85251dbb1062747557ee8499b12ce. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTAX2526048.