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 0x8be74f79c8319a4bd5083adfaf8a155ed8bc8eb9a4d000712f0372bfd5a413b8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4887b267-3971-46cf-b318-a682713a3f8a.json and https://artists.proofprofile.net/proofs/artist/4887b267-3971-46cf-b318-a682713a3f8a.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 0x412fbba7a4357d50767ea8d2d89efab6cf9d6bcd10be4250870c1310640620ab. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:29:39Z), 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/USA371292453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb16a050016470320fd75e713e1337aca49bc9bec696f3c7663ce61cc44637d. 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/USA371292454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2a14e3bd25a368eb4ff40fcb82090d99b000dc734c8b22e49569649dab0524. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:02:03Z), 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/USPQM1618301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe435c51d68caa4639f216b1c625e9ee0b1887d9d47295f8c9a082eae370d1e48. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM4TX1962138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff667b00d9f588810962a2fdb607e9bf514e9bed33ecaf99149ea86d0cbfb35. 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/USA3U2016504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f71f21cf561beb9027a252e6fa69fd841d639fc9442bb199ef4ca238f1bdd6. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZRP52275494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b8ff11c92d7224c5b1102cb3ef8314c514bcdf97e39567a7f89285ebb9c22f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USA3U2319303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb944555e3e730c49424ab61097c6aa9f271ca61b85f8a06e01c98c2f013eed7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USA3U2319313.
Bloodshot Bill Sings The King Khan and BBQ Show
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff1932add33fd7d87da2266a84c4a9c615e0ab8a784a0ae9d8d5d6e3bb9e3c5. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QM6MZ2460460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0863681104510089a9da2e0f74ea18a651afa3deaddfe33745e3e2fba558a536. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CH6132572902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647167944dfd2e0d4eb1c02a8fc13c57d2ce1931916e1cc4d656439456a87ebd. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CH6132572903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981186d2da5734df05fb22dac0d733ac1559034865a9cc6f6e77e2619784ca29. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:51Z), 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/CH6132572904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf607f28e15bff5e153e7fcfbe628b1dc70762a7b4100caaf4ba7b16e36e25b. 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/QZNWT2581370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e19a1f67717663808d134296f4947e4c243d37f92ad9fc80bad15aebf485dbb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWT2581371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97354d0b896c742c69e9005d0d14c3ac57ca2ca49fd810f429d4132bda3db73. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZNWT2581372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500e6fe209841aab16bbd493efa9b42b0d422d97a6f69062e551906fe3c0e5af. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA3U2520501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1616dc59e29f26e238515bd16c68ed7d472c4f21fe6eb544e3fd9422b1ee262. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:09:36Z), 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/USA3U2520502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7702ad338a93164baea395f650bab549eeed6d27f8a3f5a3ac1576651edbcb6. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:27:54Z), 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/USA3U2520503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12621aab4e65941ef05d7da7906fe7a34db984a47da390a296bb981bae3233d4. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:47:28Z), 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/USA3U2520504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbd196c081f2af8091f946a8e7e00dd5b485314ae25f142b2127eecea539d82. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:09:53Z), 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/USA3U2520505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb252e1564b738a89ba07f7b582d37f16fd26437d315933d0eaa298ea06ed1a38. 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/USA3U2520506.