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 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 0x47e5726af670414f745f5de42738229311f0c433eaf49c00ddb7ea2f503ce897. 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/c12cdbab-785c-41fb-ac5a-af6fcab6e98e.json and https://artists.proofprofile.net/proofs/artist/c12cdbab-785c-41fb-ac5a-af6fcab6e98e.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 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 0xd0730fb166be6f2bf30bbe7441907ef7b8609617c2fdc722b2d2c2bda8a5be48. 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/TCAFP2137562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb04820fd3abe5a28fd5c9c4dbade6f79f232cad792d9207fba4cbcfeb41d44. 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/GBRKQ2250124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3317fa3ae377452927393904f7c8537ceea23f3f064c935c03fe8efd301ab7b7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBRKQ2250126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bd8e59e827fadbb475789c235860c1173a35787d0c0be1c6f0513b9006e9f9. 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/GBRKQ2250131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcd43e8ead53da63692c1c9d1bbabeee1e302bc79c63497bd4532fe1e076bfa. 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/FRX762143474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf570eaa70e0c0347fbd6c9d63d6868b1b6c7582ec7ace252224f7dc31e6b9af2. 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/QZNWT2427182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cdfeb1aa976c5899008d11d0e2b1008de87f80dbf532731861a753468fdaa9. 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/TCAHN2355954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ab9d86e629a533c476bc0f4672cf56a20878b63d8392e768de9cf3afad3cec. 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/TCAHN2356015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d3effb022e8c0337531fcb7cb0c2fcc37b969b2bd03a3d8d267913f65387e9. 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/QZFZ72266708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308a9f43804d40df67f6c48f7e4ecf2dd74ae77c6f891af0535eb3ee92f14518. 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/SE5AJ2001099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467477c8def4c89cc99fc159894b612673ec1d91d4d50a4aa2e3b86dd96a56c7. 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/SE5AJ2001100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4e8186d66c12c4ef32f035bbfe8816ad7b5ae073958dd84174125fbf120c40. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/SE5AJ2001105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8bac8a00c43d60c5aaf4aa7464e4df49c569e1909cdc450cd55cf3627f03e7. 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/SE5AJ2001109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb68c4b44137c9a403b343ca19ac622bbf9e3701d3e1689d1fc772d07ea9d6c2. 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/SE5AJ2001110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12ae0a9cb2492d29ac499313b2be17f68a776f38e7e62f414fd4d43270c86e3. 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/SE5AJ2001113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308a9f43804d40df67f6c48f7e4ecf2dd74ae77c6f891af0535eb3ee92f14518. 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/SE5AJ2001099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467477c8def4c89cc99fc159894b612673ec1d91d4d50a4aa2e3b86dd96a56c7. 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/SE5AJ2001100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8bac8a00c43d60c5aaf4aa7464e4df49c569e1909cdc450cd55cf3627f03e7. 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/SE5AJ2001109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb68c4b44137c9a403b343ca19ac622bbf9e3701d3e1689d1fc772d07ea9d6c2. 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/SE5AJ2001110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4ba1bbcb7e094fbd6e6a65e2895ce3255a771af7c5f1996625022d07c157ca. 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/SE5AJ2101571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fba0699c6ca12e92b9aede1cdd31532544b75cd4680c3c7d1f590c37ed0dc3. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:38:39Z), 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/SE5AJ2101572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349509f0b15b56e9342ca28113044771bc94a550c9da3a33c267a8bbb2eefa0b. 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/SE5AJ2101576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e9263b15a3ce5a9e898418f30409b102882940065c49a3a03b7cc6ecf1df72. 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/SE5AJ2101578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7949834581d25d802361bf594f394b24f07f6bc38878e1af5afbd42807e0bb1. 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/QZMER2319681.
Darling, You Don't Need to Translate Your Heart All the Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9860dfadb3ff9a2ce78c771d2a0458442121fb700069a7d60f58549f1593711. 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/TCAGQ2209013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bd1333ab359db46201d04e086da52dbe98830cf63f6b330162d8962b152ad6. 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/QZWDW2208723.
across the sea my dreams are born in silence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed401fdfc41028eb330a4e4a9b1ce77b07181cec73b9cf21363927b003194e78. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:19:16Z), 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/TCJPM2084192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279169373c29cbb7a3180a7d6db70dcac1d50b8c0594dff96b124052e912bfd5. 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/QZFYZ1975907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aad5867767727bd0a9093a6d48c97f0911d2500d5ab8a64ab7da594d710bd45. 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/QZFYX1998912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b326f5918d59d1de4200e186f4fe05971f28236b8d56892659014e04336210c. 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/QZMHK2018785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a54551c868ae255fbeb71d8a2b4e95d173edf42342afdae5283abd9546c3ee. 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/QZMHN2049678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e77be943e04c46bb659e855e53354d8e850c38d7b9a9b676827912bdcd39bb. 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/QZMHL2035464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b742bc45f545c9d40650d04eb0db5d69507ec30abdd08def009c0ca5f45f72. 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/QZMHK2052580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51796adb45f590326653eb76140e8c9f6468fc9111a91d27cfe71b76b2d63992. 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/QZMHP2025433.