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 0xa9ae405cc745a7b87a1debbb0fcef06e7ab82f7ca474fb3c9d4b3b32aa497938. 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/7ccb19f5-9493-4cc6-8acb-56dd45b8bdb1.json and https://artists.proofprofile.net/proofs/artist/7ccb19f5-9493-4cc6-8acb-56dd45b8bdb1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Know What I Need - Harvey Sutherland Remix
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 0x6eddb0a83b380a50449fb7be7f6411c953976382975a8c201c9ce8a48652eb25. 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/AUNV02300018.
You Know What I Need - Shadow Child Classic Vocal Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42306dfc12d1f9bfc1186cc92036f53cc76e1da79226e37dbff4a208ef32ab0. 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/AUNV02300008.
You Know What I Need - Little Fritter Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a75313a4016328fdd737428ccd68dbcc0ba99738f0bebe485eb02c25862034. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/AUNV02300020.
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 0x3042804c1e00d9905fbc87a7296c29a498f934c000635c0d35416cced7675dfb. 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/DGA0L2384239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824f35ab851c4475ebe9df87430d62c4a6f8c4f57e3e87ffcde324813471cf9b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DGA0L2384238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1220f4a50e23ca76bd25a61990bfddbf60432e669cadd0a26058dbfc6483f9. 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/AUXN22476251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e26bff9e2d6303bfa4ff3423c678b47f6186d32e171e158561346ca32ffa2b. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/AUXN22476252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c469d5ef538b3a6a2fe6d84e5b967945f6f3b2ac85b05cc8ceca28930b7f3e0. 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/FR2X42488650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca91923aa56e49dcaadb4363563f190ff33c9b3bce5554946841a5ccc8644e1f. 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/FR2X42488651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e25482cad5ae99c6cb8978d8bdc32287670b4466a0dd42ceafcd3a7e3c403f7. 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/FR2X42488652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e04ca5b5a303a290abf6b2638935911a26c2361bfca2238062077c60b87bd28. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLZ542400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1446a65340cfeca1e11a1457de1de2cda66f0888a9d07d12e578d4d25347f2a. 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/NLZ542400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf876f827760c18021bd700459ee02fd9ac17b3ad3b39eac40ba6734aba876410. 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/AUXN22383207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff56dfff27e64dd4f7e5b6eebed6cc61de52e4c6906049b16b2907e19e1d3cc. 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/AUXN22383208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e50d916ef94b72c646bc7410811b4400a4143eea284d32b2c4fe3b21016be3b. 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/GBK6Y2320801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c339477206f2930245725f0b268a82bb8721f60ad4d08dba6a18406ed282ca1. 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/GBK6Y2320804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397104825adc68dbe0214d61dc15cc8ef0c0e03051bde12eb8528bb6ad2c64a7. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/GBK6Y2320802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec89164c697de4ce44a97bd7fad0c937a71f8f0c38374c689de68a36a2db952b. 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/AUXN22271894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06912b38d8cd11b45689ebe47b73393b28c01bd57e44710f9d90448bc2c59660. 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/AUXN22261679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb8d161b427aba5b48127a3731ce773733aef5691cbcb12914cdb70dda20333. 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/AUXN22263110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f726807421136239935b752f82050ded71b653b457024370f7416f5814fa55d. 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/QM6N22288632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc09f0397dcb1dbb469249325cf58d06153d475e31bf640e0b722e5287107c1. 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/QM6N22288633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf218ad9b63d06e399d4f7141a1cb31f77ce624e40e133089fb6f7fc0aa76af22. 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/FRS182158356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012ee2940db0e8a8b0684ac4febf5071dd90c4a26a65626c7d5fb25f0d43a1d4. 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/CA5KR2196557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ab3e1fda8439a5dae214aca8375660ff21967b29c7fcdec97efc9ec46bee3f. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/CA5KR2196558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5428f2c858212ffae7f0f44e21fc0dc2eeafb4c65011f89b003f2cd16ab546a. 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/FRX282140951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xababd0c30d7d3f47968d4db0362ec31d034749f98f3374a402e30a1f54ae52fc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES94G2119203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49d26c26da8087ed959310cc6421dbcb3fee7738289c451a20b65a0907cad73. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ES94G2119204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9969ed462a107ed59c9c700f63c63423a08a7b65ce8d5e5590ce2fdc8cd2729e. 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/GBK6Y2015702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ea0a3fd8881f09d50a746ae05fcb433e670e1c1fd74ca9c390c6ce7a663188. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GBK6Y2015701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439dd5d5ee0110a08a30446d1a04ff1f16ad0f9e5492f62763ebaca5417d70e5. 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/GBK6Y2015703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0f2eececc3208d424ac881b259262fbb8b530c815b4b157ae3a8b7a05a4c9d. 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/CA5KR1964934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b596321c2dd375b11ffcfe9685e5eb56e6f9bf949db8e9b4ca816ed68e79dd. 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/GBK6Y2410401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c5fb8449d588325c35f73e240bc971bc1b5b2b552c260e70b73cb07c6041fe. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBK6Y2410402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8bd6befa0223e6450aaa559451db7a29e86b78f1d11bd5d71d0c3f29e4336b. 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/GX53U2009224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c055efa35fbc52678412d40eb7b9c2a8ae88a99c76202a24c94bd45c360682. 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/QM6N22409198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4251153ef6cfea7bc816441f0ada54493b19727bbb9a80610280b06e9de7989. 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/QM6N22409200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44b3aadae36ebfc48aa4d945e84fee6ac7d29407660fe08b68c9f001844af51. 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/QM6N22409201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d897df681b894e1bd98f4f4636e81c9af38ae925bab5fd4c565c132b2fcfb48. 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/QZA742309515.