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 0xa46ddecfe8a342ac48b01525c0c9c857dbb45d9c341b7093c6f437d6e12b3854. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4b531ed-7588-4479-bc5b-a32d4802d8fd.json and https://artists.proofprofile.net/proofs/artist/c4b531ed-7588-4479-bc5b-a32d4802d8fd.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 0xf82a931aec766f11777b77eb999b7dc937e3efe0f5f56829afbcaf0eba14b6db. 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/QZHNC2484808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659f9dc5244f4985811f412867bce0568cc002838aa37eee967f3f20be4707e0. 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/QZHN82413636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefded9fc9e8bead8a8fea4b2bb012314d96c7cac5973b0ef19a2de1893ac5aeb. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZHN82413637.
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 0x79b3fe215deebe6b5be53369d4a5dbff7810afbc690170143d327fdf1e0e0c4d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA42434235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1439067cb5f61c679f0a1d596dde3ccfc726354074c8ff505d20eb43ccf50ac. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZDA42434236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec02b3de74fc2c2c3c72f7615e0be18f30123059f8e266ab98fb0768fd31f046. 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/QZTB72381443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0f2bab3f4734dd2223a318c6a1635a57160fb2f70ab2b77577db9569903b37. 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/ITZN62300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279548013644ed95b208920214e865a9b6e468ab928cf99b6bf73c347084bf44. 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/ITZN62300169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe686f8034846319e1626b9b830d28f449dae1085bd00b95b5056b9a1d529808f. 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/IL6652306393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b60446d0a62ec99732823a6b7a896c0195f88fba654e40e7010596986671337. 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/QZK6H2366223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf219770f27bd48bfeeb2bb555d4e11a1a5edc9bb5191c4bf13747f8a6fbedad2. 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/QZTAU2258491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e6bf9c9f895aed61b7a02327c2ae8a4551c940304f0b163ccc5930e35b68b8. 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/QZFZ72214182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a46bb4d4eb689019fa713b67abc50db9985d984136c00f3b9bcd1d6ba618bb. 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/QZFZ32297182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f7a988edd12e5d772e553994e4eb85eb6e60bbfb3a947b4a416bcb8c47cd10. 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/QZK6Q2146323.
Feels Like I'm Falling - Marcel Aquila Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fbfb2b83ba0c81a688431185adb4fb5044be006a62666b36897b5fd481acf6. 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/QZHN62180563.
Feels Like I'm Falling (Paul Keen & ST3VE O Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a9f596dcee4b2ca97034acd20d0482224aa9f744880cba2889bf3440078b2c. 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/QZFZ52150698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927fcb0f3114c3d999a9a84450da365bfc8712b1faaea2a88a15c08c09dea76c. 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/QZNWQ2088631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdbd57f86bff1381c6db38eb3385d5ecf0e591ce10c7a7e611db675afe4c608. 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/QZES82048619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72b219e971edef205abc71e73870fc125feb3cde73fb1ffb8371ff3a8ca4855. 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/QZDA62063496.