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 0xdb1fcb4573557a678af47acfb254910e4b0c7c9ea468f6c36274f157d289bfa3. 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/a7a015ec-2810-437e-a51d-4cbc996ce4f7.json and https://artists.proofprofile.net/proofs/artist/a7a015ec-2810-437e-a51d-4cbc996ce4f7.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 0xe7edadd1fa8394863fd4a381c64e3d9cc3b5f18bf6905937a91a34a0d9c30fbb. 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/TCABX1493674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f76fa9c60ba16929629c0303cf1099b64909e3fa58d2b03366847d57b8fb7ce. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/TCACH1549742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1249585e4c04728321bb4c5af9cc4120729341fa6cb8b14debcccd745c27ab7c. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/TCACH1549753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc6bd43a435154cc81976f5a57213ffe81e88b055dded05e3cbea49475b9f3d. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/TCACH1549756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b9853bd228ccee6a3ed101f18855086fc2992901f4aaf06c9ad56658b9254a. 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/TCACH1549757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e6ded1f606d969a7dca4112a3572d5691c907a3780d39215afe021d88c7137. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QMSQD1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98544c4021434e5da4d49e347df4ad49eaae6e2af772e0bbe13afe7211b6bd28. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QMSQD1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdd0839e7c450e068fbea6ebd52dd55e1eb5584265333d8f7809584b2ad170e. 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/QMSQD1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b8bf03efd2bd99a5965d809a0547fed3dda931e48a55bb5ab1789f30cf3923. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/TCAEK1900636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603d836481209450e1b1f6c8824ea75d97654805c2fc12bdb6703830030db389. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAEK1900685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fc4c7505e5e16606d165b0c51d6a72419e0f8119667a4475044e0cd348c368. 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/TCAEK1900691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f1978f46967071d4e45cd611480ac93a0e445a16e2f248ea8e06733888922e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAEK1900701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a764b2ba7ccdc27a179afc805ef7224e32099a80403898a932f49d7c2386b3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/US6680916962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd033fb44a20ae61515933db4354d2001bce9cf01b8a63ce9513dbfae60b74efd. 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/QMSQD2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd033fb44a20ae61515933db4354d2001bce9cf01b8a63ce9513dbfae60b74efd. 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/QMSQD2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acd89b471a80812962d3380ec0bb1148681e8fa88d7b5db5d85f2b4e0888027. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QMSQD2200040.
On My Own (No Future Remix Funk Down Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecfc9f1c03d3cfe3fb21a0647a9f804dcd286295386fc0136b651b04b40d3ef. 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/QMSQD2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f4bf5db3bac4758082e16207a776b2d6cd3f6fa444a5a1ea2e36287ca7bb18. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM4TX2117396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c514f3b209fcccbd7b3f7abe631551bec526379042803a64a5fffbd9dec5c12. 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/QMHG41695002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f2d4c75a2e9ba90084a2d1772c5e4a128cba2901ffd9dc6da9ac42fe9e99e9. 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/US6680916535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16653d7c3a59cb7e96f3003a34beef3660e551bdb5afc93288ab33765466ad4e. 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/QMSQD1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164eb81593ed8be2c3b40f44426c0ee925b924e1444596daec8b4d84c975bb34. 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/QMSQD1700019.
The Boys Are Back (feat. Brian Ellis, Zackey Force Funk & Diamond Ortiz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3eb77693155aba43a65dbec65e9135bdab48264f379a874222abce139f7a47. 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/QMSQD1600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc202431d2fcd7df716ec38a954ea54d291feb9b68ab682a8e82c2135dc00c4f6. 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/QM6P41790312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb9eefe7a6e625297145d01301be37c3ee5d868adcf69a3a3b7233fd6d1b089. 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/US6R21391003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786043ac9389a63b4fcf801278439b05e0e9ea55ccd975bc1d59dac6ed576ee9. 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/US6R21391004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eeb016efa609b3b0f2bda9498252a62ffa78bd4c9998149ad3b35863c4238cf. 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/US6R21391005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7d69ab4acf5eab25b5490cc0bad2a66543368f20b868de6c2bf48f6e63a8f9. 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/US6R21391006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf0e90477e850ed06cf10b5b26f296db6c4f9d6ffeb7306bca746334708e5e3. 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/US6R21391007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bc78ec9ddbbcbc763df6dbadada746d7aecf0c16d9dcc554f8df305d341c72. 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/US6R21391008.