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 0xb10c6bafa305d56b7d360f407c7e820c77a0fe4a6b5202b8c00f240c9b3eb683. 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/b95e433f-67c7-4982-82cd-8a4f3b5e8863.json and https://artists.proofprofile.net/proofs/artist/b95e433f-67c7-4982-82cd-8a4f3b5e8863.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 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 0x3b638937384a623a805a00e9b6125110c63c0692d5bfa6ec6754daea23cfa66e. 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/NL3BN2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851189bbe580f464111153deb28e364a7dba324d80d75ba7e15522f27a3dcb21. 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/NL3BN2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49e0926e9f7e7ce12c3acb290974b2ac24801b58ca05c22beb68796c4ce947e. 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/NL3BN2000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e40d6ebfbf20d6be77f7a14a030da0ea69038e76788071d762b9b77e780ee5b. 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/NL3BN2000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078d1c33f36c15718d512c0ffc9fd6e27995d00171bd7164bc37c34670d9d567. 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/NL3BN2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5857f30b84da2386d1c8798889031b72d696092bcda141f58bed8120addc534a. 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/NL3BN2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91172bed69465e8969fce592338ff5e9cb2ce935626b87f86e7221b56d1c1475. 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/NL3BN2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53442f631daa95988ec7149f3fe62d1ceaec8fc12bad2221b15e58c499995590. 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/NL3BN2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9d1577dbbf0d88d5e1d2046f3c09da751772f316dbfc5a6185a1ecc18e6f26. 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/NL3BN2000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109ed6fbd9b9dfa8bcb82a67cb1db31a8daf2227704e5442b6024fed4aa7b7bd. 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/NL3BN2000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e55abe9a7d4abe496d6aacc76fc12910aec1352bf9d088d93e001aa9d124f0. 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/NL3BN2000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e8cf53f3738ebcf50cc8e8cc5cdeda21541240b938bf92c85773be92ab97bb. 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/NL3BN2000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d0e7a3c08a37b8bd9a1359e654be9f426a0d683a078845641af5b1d2399c0f. 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/NL3BN2000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917a4d85d9db5239a8889f3c5641a5044ecec4caa00030190b46c54e8a508b9a. 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/NL3BN2000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476cb259d13a3e8fd6283b2c742f4929e22c3134db4389849d0b6676c8169f0b. 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/NL3BN2000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70e94796e9d426d979042a9643fce2bf1f65f5026e89bbee31ea283502246b0. 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/NL3BN2000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1304fc973864e4e5522de2f150d328f5cf9aff560d6b682b7a98aa16abd501a. 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/NLX1U1800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e560723eac6aae600ef7737b18549067062a6a313fcbbcff4e46d21f9c4575. 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/NLX1U1800083.
AVALON CYPHER - #Special (Era, Tarik, MRD & Jayboogz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde5024e32ab8fbbb2ffb2f65cfaf3e4c9a2276238b0a140a05bd010f99a3dab. 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/NL3BN2000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863ecd9c1ce734a696a8b305966b614bd860163c58bb82b711226b41c708809e. 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/NL3BN2000155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e06aba3bb6657c5a6df568a321b62e4b8437872e452ad406f59bdc77e647e60. 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/NL3BN2000156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bfb0e069c00d7a72f7d4ad9aeb7dbe825f32fa96e1af4380033972f27d3d27. 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/NL3BN2000157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86877769624b11bbbf859b2014f08f92ee53fcd9855a43e5893cc593fe46123. 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/NL3BN2000158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb70d6e87581307aded9258ab809b8c8d21e29c71e355de2fc41182a43774880. 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/NL3BN2000151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd052c71a6ffd04766860e2b5e2174925e6b0036ffe8850b3b10b6834c335beb8. 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/NL3BN2000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fa75086006848b4a0abc74b625be7802fa179be4888abc7efa12a6c1bf7471. 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/NL3BN2000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8f8f4e1c55d0e7c819299459beaf28bb1566ad0f5e5951f20785fa34299893. 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/NL3BN2000163.
Avalon Cypher #2 (feat. Tarik, Minitrapper, Sepa & RBDjan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bc8c68e8e57867764ed6dc90e24a0d2c401d83eba174e1ecc7be7251f362be. 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/NLX1U1800050.