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 0x0d12ab296064809e857a7ad139c472ce8092ecafe053b3a1bb57160830168ac3. 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/3fd5d17c-35ef-4e79-87d7-db538b31f620.json and https://artists.proofprofile.net/proofs/artist/3fd5d17c-35ef-4e79-87d7-db538b31f620.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 0x2a284c9ed1e33b767a43c5ab6eb62e605560de0aafa40965618af906d6f4561b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USP6L2000506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36547342fafa81307c08992ecf5217f9e1b79b220401e273b374493fd3008468. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHZ51964689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5dc728e726ea3a8b52201f7b79845782c2c8e2c3b14805705d757fede2c8b5. 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/QZHZ51977095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea38ffaf21d7a3eadebd0af1865c2cad406be50a09217f05f72449f92495c93. 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/US7VG2001937.
Cold in California ft. Gavin Haley (Live at Vevo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa34671e672f8343aa4ef7c99dbae37cb3314d32feba8ef1a8d403115544938c. 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/USQE91600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7401dcaa86c410403fc3f02c25d2ada8176374382909d157ab4485a7d4ea944. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQE91600063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dcce9dfa7432c23c7640df8e25af7710fd2b8d11c9358aaab20e8c5949e558. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USP6L2100960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fa2b37302f544bf959a055ad23b802bfc44a4a14aff525250cdba527bb4af7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USP6L2100961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6f3945b31e66c4a5f388a2a0fdd0d3c4782e2f3a4e8494ffe00d58000cf620. 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/USP6L2100962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc7f25c1c3065992e1f16cddfdc478a32da42da0f0cf5c23c92c6b23fd940ce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USP6L2100614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe153fd6de48ed2556e2e6585218a86211860e594fbfa98688aebf8079fd24fd6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USP6L2000496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bac65cbaaf90d4fc3b79fbe87cc9006f6e5192b578dd5520290d44ccc4bb0b. 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/USP6L2000464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6f0c105707fd9f530ec682cf9ac7c246d5030bd96b2be1fea62da30aa220af. 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/USP6L2000491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0af8204b3d261e13509a343bf2e64a2a2835a16be274ba9eb93227e6b8cfc0. 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/USP6L2000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd67b509bf8626b1a27e050d867db065aef0117e922bba989940b46d972d886. 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/USP6L1900411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142b7ff7292e80acc08b4acc9ae8985c481cc531a71d87a8a9ac82c087777832. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USP6L1900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7aaa8070d46dea7307141b9885e9977122dbdc684b0750c36e3b342553505b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USP6L1900362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8128ea1571b1753e92f9fa387c1e9e9c22e957180268b5e7658a721f05ca649. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USP6L1900413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33474eb02c9207913bde79b1a4276eaa707d29f0d799d7b935e3876a1c563d2c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USP6L1900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efb5741e35eb8072b88a495dfc138e626f0561290804f51eab2f410cb4540b7. 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/QZNMT2467176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63edeb4a35351f3b3aba923ed55b9b0303e576abceeb5a11e428f09d74bed876. 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/QZNB82476421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b47f56dabf875aa2258e4c76aac453fadf1c5d44eb3656c397a8ab8a0e1218. 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/QZMWW2477758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6f3945b31e66c4a5f388a2a0fdd0d3c4782e2f3a4e8494ffe00d58000cf620. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USP6L2100962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d0f8f9080d94f46cd494e721adf7c1c05e3bbfc9b5473a1bc265e945d203fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USP6L2000535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0af8204b3d261e13509a343bf2e64a2a2835a16be274ba9eb93227e6b8cfc0. 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/USP6L2000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe153fd6de48ed2556e2e6585218a86211860e594fbfa98688aebf8079fd24fd6. 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/USP6L2000496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7d5696db1eea37047c81e322e033282cba1615bb28d2e49b6f6c952bb750d7. 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/USP6L2000481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bac65cbaaf90d4fc3b79fbe87cc9006f6e5192b578dd5520290d44ccc4bb0b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USP6L2000464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3faf3cbdf73bef4db8c476f607ca4eda53d1440aea9bdbed9a2cadd0a1028ffa. 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/USP6L2000446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7d9f460faf730ddaa107bda21cb06a94ef8fcc39f740af5629d7230668f9f2. 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/USP6L1900441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda24974379dcc4f45f457dd0da8efd2f2bf713f59e2f7046b4c673816cff169a. 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/USP6L1800330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab713d2edf22ee37b33a9f41fa4e1ab0672dfdb7c1dacd2be771c92d8b18b78. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USP6L1800324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7e0d8ab1d41aded737f9ba569d74b439bfcabb04b5964654aaa457abdc1523. 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/USP6L1800307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606277d92c1b316cff12fea4225e4ee1d778c99e141a53ab30c261b6e50bd079. 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/USP6L1800287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b20cd3e67cff8ad3f3bcbae8e4765dc023d2cc59ebba099aeb33229440146e. 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/GBKPL1782411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91a7444b7c02fe3236145e3f0fd01b4b70fe87ac4daf4463610629b8b3370e7. 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/QZDA52052356.