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 0x4263994b0c180109887bb082faf9407a296c5687f772823a6fa53b7126c758ec. 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/0a95b757-4e45-40e1-b593-99a1cd6922eb.json and https://artists.proofprofile.net/proofs/artist/0a95b757-4e45-40e1-b593-99a1cd6922eb.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 0xb4b33296be51271bdf751327982d03478c42082b8dde10a933e032a07eadd327. 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/US5TA1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd4eab6db4427bb6464bc922bc3aa802d841ef44c704508a053da02c03d14fb. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/US5TA1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f2fa674b39e438582e473b4a813bb1c5cdd83429b7bcd2dc8b7aeb258eb20e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/US5TA1500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4cb9144b0ff35d657759164ebe1092f1e72d65eadb2c62f282c8ebc9411744. 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/US5TA1500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0505472a15a1c25b761e1bde139ce681a23966df3577de4952da198d2cc05e55. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/US5TA1500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb6b864a0cbaf054e4e02d400d007e68c8801338f9265faa8fd6c54b09e3c5c. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/US5TA1500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23eb4d00a4e4b4cddd8533b09de09dc8d0e447ef4d3c9603b8f54a9eba9e5a0. 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/US5TA1500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b192b5d59f8dbd64e5814af6b58cfd269421c8a7338407b1264663d71cf5d8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/KRB471600212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4251e8007f0bc653e4c8a8cd6973f61a01b367bfb9e3a2e2e0c59819288ad8f3. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/US5TA1600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dbaeecc32c891239c04914dec622c30d2e326291eed2cd84eb6ad275b8dcca. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US5TA1600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f30e8cc0ef375cc91a94662884f7ebfcf144577f654d1f2372a0eb0072b3ce. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/KRNAR1704509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1209aa247e397a60148439ded25edc351b116b5392696a25af6d2df410541c71. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/KRNAR1704734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997bf58743c8d0de10d9e19c12996b6254c7b4f8c256968919e2a9af5752a411. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRF151700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4f848609f0e92763c019b5a1268ee8a3636f64b3bb1e193c843bb099af00cc. 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/KRF152000081.
SISYPHUS: THE MYTH (Original Television Soundtrack, Pt. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883bb89a5bd76280dd519ecaacec657863c4beab7caea434c9f159f08005541b. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/KRMIM2181674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3246c83062e17d145af022efcb2a87b7dcf2eca7ffeffe1ee62fc6c1dd8bfa67. 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/KRMIM2181675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2009ed647490a79a1637b99b9be2c9438c295aa41d9922f4b4caa77a0897c8e0. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/KRA112200006.
Revenge of Others (Original Television Soundtrack), Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6efff158144a3d6795454b46a3063378d9b67085c80568b174d79521b351c4. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/KRNAR2218461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5728dba24f8e2964b095da245fc11804ff944bd48afb026eeee915811dbaf6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRA0R2300771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe759961d43898e1e6991b970b24956507ae39141e02c76e0841197eb808a3f17. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRA382007098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7b3190b3caa5f10d6a89c2eefa1415724fc4151b2d6e4f92590bd7c7a88b71. 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/KRB142100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7adb4e94b2a0cad8ccfb26c7230a6631687e7c5f7c77a9ff35380e06552f273. 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/QM6N22375364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fb5265a9894c467f93d9bd57901674d44f37f18073d1ddc8361f3175e5faac. 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/KRA401700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ef36b96e6f0b91365272d16c1bc9e758bb8523995ecc734a3a82f3cb8baa28. 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/KRA252400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6bf4ea7db86e458bbfb20d9d245d820d1c7ac575fd8740844f17e132a392436. 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/KRMIM2004957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40ba7c424781cc55cc60f19ac50284781d5f56f0f33702f52188200d8ad5231. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/KRC391700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc8352efe94eb4b8e15100fd2ddaeb4751bde4f239357e2a80d53790e8ff420. 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/TWAE32100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9ec192ca73825357aebc65993fc8f9e8927b07150f65f0c6c4405a9870a91b. 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/US5TA1500265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b94177f962c9fc7664fcd5f567f6a4a1e9792b5ac3e9fd4a93df30b449aaa13. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/KRA341789989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a00271690e59e22799aa996ae4d72ac4014ef10c33e514601792b1b672bd07e. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/KRA491700124.
Bravo (Feat. Coogie, GSoul) (Prod. GRAY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a5abc6b96bc4d7d63e69e040733de2bf8664f4f2a2cec26826349b1d43cb78. 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/KRA382101163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd9f018bfcff2b56f098281edd708a7d5c7193a754ff4e9c4864201f587c3c6. 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/KRA381702309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850323ba41b459fdd978d526edc0af72b9120ac1f6d78ccf7b99ff34d8993675. 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/KRA492100379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d81870003f8a16baf726e8ca31a644d01f13587c5aecb831ecedb1100ee6abc. 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/QZ62P1700004.