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 0xa9920b980e4bce7f5bec8a38382f5992b444c8de70729e23ba1e1992469a7455. 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/458b162c-5840-4ad2-bd80-9b05a650379c.json and https://artists.proofprofile.net/proofs/artist/458b162c-5840-4ad2-bd80-9b05a650379c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sing My Blues Away (feat. Jedi) - Single
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 0x6f7510ab1f6900e1297afa0587269e43233b9dedb90e01a4d124c837ca800096. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/CH8351412502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8386b612f01161c2be090334efa1570cdaaacfe354ddfcec74f47b0a9eea8c98. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/CH8351412503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e62da92cef3e44dff46376eed07d5f92ac2c61f4529f4ea6c48eb6e2088b5b5. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/CH8351412507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74a9b06ba148eb676f649171c38a5be392137c7e915aeea3554deabebf20d2d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CH8351502602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76de67ec226dd8eeff21ce88b7fdfe9b335d55656bd141729f41e4a15227b7ca. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USUYG1164225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdf39d36ef6c062fc97d7ba02a59169fe9db74984684786c8f8f8a1f76ebec6. 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/USUYG1164226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3475fe1e2392b6d68b9c65b8bc088cd7c692d27d7c99ac6a54162c3cfe33df. 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/USUYG1164227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093101ae047fe3afacc49790e04d190a91badcc2210dbd8345899feb45c54811. 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/USUYG1164228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275cddb35e2f0aed8fd61cc856b9e418c177d8718649723443c57386d5721d05. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USUYG1164229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8563b4b3756b7d75059bff31cfceb4c65b40c0342f287c208bb75c3ffb3e586a. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/USUYG1164231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a68965b12924da0797baae97016aacb9961f8184cd44e0aff53eccaf27608f1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USUYG1200632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348b5ba49256943f1f68058afddd98f53f4860e696afee5e757024753cff2d2e. 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/TCAHY2472418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a705d3714321dc8f6af9fffb0c9dc3072cc274690cc9cce99501e25f701fb8. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAIR2457386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc304a6cd0acf2218aeb2c767835b16531e633e6eec2cb25d27a5a49600ec6445. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAJG2568441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c834db9de2c3340b1af6bed55feba1aceff55c90dec3008f4b2626d2cf0db94. 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/TCAJO2564033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef09e0d114a54b974cada4a1339211e961ca3de4aab17580488e5da3ff015ef. 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/QMDA72577322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd981840d06aa6354bd38f9783b7162332ce2a486db8e5a6348dae3f72c3d56. 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/AUAB01601245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27f223118a97ba780e70cc93c6e6bc0eda03d7ebdcd9652db566fe418c3731e. 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/AUAB01700239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288274b34035b3beb9a3d49d6296e4bc80511df77b632a0fe62d81541fedcfa5. 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/AUAB01700241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfce472dd977bfc4e27f6b37f16ef0f9156aab98b80d341706f38f4bb2074c52. 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/QZHN32036396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefda2fe68ea93541e58b3f0289b6703dbf3d5c22b1deb3a4e18f326d5d3eb1d1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZA56E1901134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97b0faa481ad3cbc3b887ad1d91d8a2ea08a9f59930e9a9021f09e975d19487. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USEVN1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef884a22aa47b4b573b03c484f826c5a25c04939fa3500259f3396cc8e99acd. 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/FRX872307234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c422bd413cb0d130d834253159f7c6fe4437cc58dabb83733611fc5614f77b9. 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/FRPGB2112560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba623019c9326c6d9c3d9a7bc2026750d93879b000a2913319645194c79445c. 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/FRPGB2112630.
My Brother's Keeper (feat. Randy Valentine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3af3c412feed172a50b2d9daca448c34bcef8620c31adb69dad41c1568238d0. 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/USCGH1519170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999421a000a407c8fd25008ffb51bb3d6f6675e2d7131a206337b137b95e1c8d. 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/GBFFM1732539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ade41932ec48a3c586b3c65623f1cd25f59c0eb886c3b9ea31e9be98a5cbfcf. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEQK11400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16e5046066611adb12579a13acf9f3c1805445cbb564f140b51602a5ad5a3f9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEQK11600142.