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 0x196fe0b5c0e6bf4106e1af57885149abb0463484315dc2184cbe6be75e760c59. 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/baf8d6a5-5c73-4563-9767-33d08318aa6a.json and https://artists.proofprofile.net/proofs/artist/baf8d6a5-5c73-4563-9767-33d08318aa6a.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 0x7c54097809c64f67dc0b62df8abc08ae27bf8e35c4b7d3be2e489c2f350e50c9. 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/USHM81856014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431a5abbb7393a335b25c38b180fbc27043fd5475eaa75af0e63d21745b872a9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USL4Q1852785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcda89ea6289ec757c26013885984facc06ac0b82db3ff25f53fea15ae66609. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:13:03Z), 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/US7VG1915900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa28db0e521a6e389f16d8a10dc1ce157d336204559fb53324abd337b99ac1e8. 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/QZHZ41991211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb036117228ecb47c4b3b76fceb93bd274d59a12e9c3af7acaa9902d9b6dd641b. 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/QZHZ41991212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f74005fc26cb436fb2990e936d64b5cbd7988f0807c0786037cb14a007671b. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:09:04Z), 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/QZHZ41991217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613218cd8d7fd01cc329c3b104780e47bb7a5b7bcab6cf3f82ab083f6f8cfc3d. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZNJX2045211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe19eed7fcdd2ecb1cbca79e217802c0b53a2f8b97ee1ba3c622f7cfd46ab778. 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/QZHZ42158833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3277896c572e0e7461b644d4c3d5d81d31e0fb6856e435f4eb12bae7ad1a38e5. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZNJY2105857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b4cef0ad99681a94c19cbf54e8e75d22b6177f75d9891fd37a0b7d99b36550. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:08:17Z), 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/QZGLS2276913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5be104f0be9ae0885c7dfb4521c4c5975f3ffc1d15c08c2d3c6d184edb8dc2d. 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/US7VG2234171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd016a3300db8aae7a4e6a2203470b607f14be9c0121ea5209f170e9a2137a32c. 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/QZHZ42295663.
Valdo Rodríguez: En Vivo Desde Foro Indie Rocks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3774c64181fa9d9e15f5c3e58ad4f4317dace4884dafa02e6991b46433da4a2. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZNJZ2287631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0d223e4f8c75bb51b3bd167d223598a85370712f2906a132860955c0fdfc15. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US7VG2304787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7ba68938edfdd4c2d28c6d8c27ff8801326b0decc7a6510adb3dfd83c4c911. 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/QZGLS2398946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11155e028727bf2eb34c1c79752a820a84d52d92992ab01d2f913c4c2b2ccbc8. 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/GBLFP2361390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa259dba998ffbcb498237de1f46ca25c5b61eaea6d3731460c2dc1725ddcdcc1. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBMA22343093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d415ca111f611b4143bd681f80e4d58d457096ad306e7f5029fbbb8378a36e3. 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/BK4DA2454493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12f1773e930499a3fb7866346e451411b5276d2627c0e04714a2e2b2bbc1c14. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:08:04Z), 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/BK4DA2437509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3fcb9aab46891f4a8dbe0c3945d37d5040b5433a827d7367d4c73cbfef3df3. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/BK4DA2427337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d415ca111f611b4143bd681f80e4d58d457096ad306e7f5029fbbb8378a36e3. 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/BK4DA2454493.
Fui La Culpable (yo solita por enamorarme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6a0e7019faccca66af58f8f29dd4eeea0640aaed5efe6a02484f2480e8c000. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:15:18Z), 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/BK4DA2503381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1b81f86278342d9309931d87710c25aa734a867aa8e34bead256519b0af95e. 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/BK4DA2502048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bfb2c8bb21625862a1455e1a098ac89d7bb9cab95ed445233a0604da89e9a7. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/BK4DA2456559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53248635f481b8be0303fdc1c5c0c93352bdb8a9fad8a7c53028483f0e645e64. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USA2P2556616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd582c157cb7014aa353d3a083258d2d545364f490864c2c4760441482d9a5c59. 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/FRX452099280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fb22681339344114213c5a687dc3b6be8664a60fa2e8ed51ed7a53159ed822. 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/BK4DA2411613.
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