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 0x650409571199214a2e685e19406e0637ae58c7311a0ce454fa22d3af84601cc6. 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/8025fa50-8358-468a-897a-68e252febc90.json and https://artists.proofprofile.net/proofs/artist/8025fa50-8358-468a-897a-68e252febc90.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 0x3d10edbd0429bb2debf2a7d2398fd1a9856759e7d2e1ab25129d5972089a327d. 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/NLZ542201217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821e443e55a10c02149fe3ef51e743b70fb2b5f1d5804dde21d4732974d2a4a2. 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/NLZ542201879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa7c3f69179afcef5d3c502fa5239d23fc8e0ffea2cdf2111e9102e0e1bc3f6. 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/NLZ542201023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3682c90d22860e333521bc3755d9debf11f839babca8a060c173ff29d2e23a. 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/NLZ542201897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323b05799a25746b453f667cc27411544ef95c7c18c38dd9468a96b78c6737b8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLZ542201913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd9285a5f7e120d79543bbe91249114d4d8e835863288147a71272351d4092a. 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/NLZ542201907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38054ff5d391c34038f4c57d2107970cd8cb135bd11c7682e888bf6ef1e92b. 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/NLZ542201910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fc628808f6cd503e311fe64d36e3811840ac3facd5acb4370b11c5a0885722. 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/NLZ542200163.
Jolene (feat. Angie Robba) [Adam Trigger & Flo Dosh Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124ddd1ac9ee186d05b36bcef9c77616ab1a0ba1831e0366b5ac4b8c479ca86d. 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/NLZ542200761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc0ac26a68034971de1b17293f5616629281677bab4a2a73aec173f53b8c23d. 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/QZU7C2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83be9e0db972a1985da661f932e27c11af7fca1f370ca5a53400b4579d3d252. 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/FR6NC2460310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c88a81e3de9e51979b224c92f8950c3e1d822f4c8e82726570d2f6f0e240edb. 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/GBCPZ2423280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeece13e44136d355d497386a17b642e39545c7e6a0cf70ab0d356608ab74b072. 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/UKLVE2301397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d895621e4042e52a9b66ff5ea4eb36d0509ccb3454cc4c7599e2353c59adef0. 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/QZES92317690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c4cc4a9d256ec20eb9cdffaecbe4719b8fd7e92b7f539c865711b4a9a70a07. 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/ES5052300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5135f4d3c62e157c48c8d99a923c8ae0306eaa39041c9d50546f80b5a87318ea. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/UKLVE2301347.
Quando Quando (Nicolas Monier & Flo Dosh Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f6b43dc410be7bf74759bd47f5c95ca63adc46277694d5b7ede33e62a3ad5f. 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/QM6N22286559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124ddd1ac9ee186d05b36bcef9c77616ab1a0ba1831e0366b5ac4b8c479ca86d. 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/NLZ542200761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409ee47441620332a5a6c509546d975a339f13bd931bec0dd7b25e80d69fcacd. 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/FR22F2200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94975232596ffd5550da330482b9d93889f62d098b72d1282ace33effa89d784. 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/FR22F2200180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22073acef3f14e0038fc72bf14c36ad878df8bca0ae5fcb63a0ceae41bda4119. 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/TCAGD2250279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d8c9cde21e3d51dfbc4330363676a2fc9c5dd43f82d786ba25d53e4c6835da. 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/FR22F2200040.