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 0xd3077477550fac3c603d1f5d4b74d9c6bbe08d5742595f23923a250eab0755ad. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db696e00-6ac1-478d-9df7-bb5b13d6697b.json and https://artists.proofprofile.net/proofs/artist/db696e00-6ac1-478d-9df7-bb5b13d6697b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Songbirds - Bali Relaxation Music (Instrumental)
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 0xbcb68683e1b437e7518c41cd723542595e6a40ebf78d70c081d91c1466d7a95b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR59R1679012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cd5cb9f4c49fcc1ac177350f4131df3de947e06ee79ec2338e18017a1181cc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR59R1679013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f164072c93a7b4fb878c55548ebcf0d96824b2deb9e86113f67ce2cc1af784. 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/FR59R1679017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9064d0c48722cd53df0fc843c0b8a35eb538e4e53a0f46f98635b0d39814a8f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FR59R1679014.
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 0x57aa3ea07b62361da742731982d0a8dbfa3cd49dd8b3c41d8141fe52fc04d75f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR59R1679015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebc72bf13ffa1829d6fe434c6ac41699d56802b16c0243e574b56bbeaa91d39. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR59R1679016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc217f3746bc3923d2ce985d5e33a55c11b301585ef30d0a8be0392736d45c7de. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FR59R1679018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe019f21b239a708a875a7ee55f9ffd230154743828d8a09ae7480ad05dd216. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/FR59R1679019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b959d7fc6fb083fa1e74175433242c729e2eafa3659f6467d598223ce1611b. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/FR59R1679020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701a2df9d41c8a0d8804188c6b9dbbc62fe03c3192f0cfb6ab4c1730549c4b4d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR59R1679021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db1937c1d3b4124b83cad8eb18bb16c0f026f2f6ab2ad5be0cf517c9cf27fe6. 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/FR6V82266014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c404d2a4bfa2aa7c53dd44ada38954ded3bffce9e6ec6e70f30be4355b7b9a6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82266015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f49fa80e345bebdafaee4581060d72997174d9ec562a89c1d91b4481b768a7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82266016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b591931663a2f68ebfbb630e46a423f762a27b8f1d556e90b10293c525d5fab. 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/FR6V82266017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6906782f8a0524c394b05fbe2adc1927c3159a6e842c821f0859347bfdea23a2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6V82266018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc23fdf787cfe5f8242c679c89fb23035e2bc7bae044c47c2620fa2efc33bf8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82266019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e7f22bc4288ec44a6c5f7743ab6b16bd065f00fb750f5df9f0c2a323fd08e2. 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/FR6V82266020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde0576a4ebe01098d90101c6ad29d316ba4a0b19c470c0f0f66d092af8419c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR6V82266021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c77ce2d992fe3831429d3b840433db9c89325b2c5b86f1556d31e403c21ba4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82266022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3089017cdff9350ce46c6748306bdbf62b85d4246d8e10aecaf8c99caad13991. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82266023.
The Best Of Degung Bali, Vol. 2 (Balinese Traditional Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ee10baa05868c7e0df0c464be6987bb6eefa7d0dbe38b84fb6e7ea64640332. 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/FR6V82482200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04722a666bf334d7c16645c2e6f9d54cc77f2d0d274cdbc5a9301dec2a5e07b. 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/FR6V82482201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23221773e14523b764eea1bbdfd2a5ef8e04220f55b34abd14fadfccde87326e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6V82482202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3134e81adf15e6b47f9b68a09ceb261fdaf0db0b1607796dd784976ec551bd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82482203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed483906d7b8fa3f220ff488cdacbf9fd7a6364af122f3f9a4ab63dd044c73c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR6V82482204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cb9005954dbe1eaec3ddea62ae12710d7c2b11ee0a091c11e954b792f62ae0. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR6V82482205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54bcbb921ef1e7fb3f68bd61d1ac31deedbbcbd2f6b13634e1ca9b018945a6c. 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/FR6V82482206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6ad59c4c44994d540511a8a8aa27b79e5839601aaf7576b34aab12783bab7a. 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/FR6V82482207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e701b51724cb7f4c25ea644ce436bc1bac99d984defa3c7dccce8b5d1cf8985. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82482208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af0a80229fbecde60098cdc0f1643dcf4f3c81ac75966764a75703f07abb8af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82482209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973d6f86c029d10217303452b954705ad6b84c8d8fe15691253fcaedc70a8271. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6V82482223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03c41fe5677495beef0c6eb65e0b866f28a1b66945cf9e8368dcb34d772efa4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82482224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b06affd079c010e2d467dec2f050e74a861c5916624f54d9e72cb7223aa6c58. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR6V82482228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5eebaead979cc311210e5e2493cfcf400ff9f1d623220478f39666ef6dbe8b. 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/FR6V82482229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a58c6f9a2c3eca3d0fcc31a464265a3fee541a804c1db62c2719f191032d36. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FR6V82482225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd438c90218b76605c2f56915fe497c49fb5216a2d4c5b8724fc7e907e667c90. 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/FR6V82482226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e1b4da0453c3c58a6d10f1a2b397b41d050a80e11473122f76d831b0c7d703. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/FR6V82482227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705adfd2f873e785db42ab42af8f52784579f2b0847bf98f1d3927a995fabb9a. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FR6V82482230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d66cd6146a1b3fb8c785e7dc065cee6693acc2827500e99f4890a62b773432. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR6V82482231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254eda8261ad59fa979e43bb08fb7d289153ef208d1f90d4b23ccb6f5f40eecd. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR6V82482232.