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 0x09b2b881cc17f07220e62266a657f65be640955302bdeab6c4effb3a0e1d10a6. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f54442ee-c67f-4272-8433-7a31489e966e.json and https://artists.proofprofile.net/proofs/artist/f54442ee-c67f-4272-8433-7a31489e966e.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 0x24286bb546c059dec0f40d96120a02d3f3b5a6b66a4749c9e5c8998036ea27ef. 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/GBKQU1877986.
Woo Let The Dogs Out 3 ( Compiled by Rustlerfari )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022cf766c7c5b8e6c9fa12ed310686a0ed567db2a7bb14819a6d506eb70174bf. 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/GBKQU2242779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bf76fa76e1e9df0537b53e8a2994d3c378bedcf8fdf510811ea6c56d5a4c82. 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/QZS642251365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131e85b1bdb302f7debc90ae1d1135a447a06df652e1c7bce13af7cf03653128. 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/QZMHK2256082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bbc3d7fa9534528a9bc675e19e4416e7d441d8c08b88c05a7e64e9fc986d10. 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/GBLV62015167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5085846d786e3fcf2ff3d70bf2b3927283510d71b34288685eb619bcc1f6ff1. 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/GBLV62015168.
Accalia Echoes - Compiled by Toxic Tegan
Technicolor Dream Goat (Argonik,Kabayun Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b66e03b790d5ed336781039f3c1da24b12c78df7e919a57b68dc9d9c10d2c8. 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/USA2P2321767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc8a4f693e8e7f70095c2da5b350cb843c3cf168fa62263de49cfcd3680ae36. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USA2P2321768.
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 0x8c9adcc1c0664930d438633c35215fdfc5565a09766a3064f1a4bffd5746e38b. 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/USA2P2424317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf425187a80f66beff8bf7e670634eb080eb6f3adf3d163b9ea8bc0e0115fee2f. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USA2P2424318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572094b37e655c5e543923bbdd5bb4e430594b130fb2b0a2b50f00f954b65f04. 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/USA2P2424319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0665f81a2aadf738909c8cf0f8666c6f5b812c51275f542e4c771bffcf1b9e. 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/USA2P2424322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3925c98ed67b4fbe4a5a91e12b81669b57e0586d1d19290d5fd62b0fb94360f3. 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/USA2P2424323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc167f2a9c44d197e89b28dbd80dc72691e0349919fc73f2c2a910993a28fec56. 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/USA2P2424326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4495f4f363550dc2a875b991a060cc7fbb2207d63525301a01939c6e987a9e31. 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/USA2P2424330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e0d630ae92081d649cda0e5eed34fb327be9b417d8d088a17a53af18a2427b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P2424332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7bc762b53abf53bff584151b222e36f5c3471dbe719f9e8d3753b7f531f478. 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/UKU932460090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0889fad85e6356d9d57be83be3789532733d8c0d1afd9e83a0dd466ba6044fef. 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/UKU932460098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ef433ca51c812c8c6b33977f54d0ec833e948681c8a927bcdc9a651e8fb7b6. 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/UKU932460099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189294755a3ad453743a8d7adb377c89b01489e05a82af0d1760e78186261fe8. 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/QM6MZ2483078.
Woodland Critters 2 (Compiled by Steven WooDog)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d7e5ef13afb43cec5b3d33ad3bd482a38a2a20135482652fb373bc48714377. 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/UKR6V2076406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33648416bb6fe3c80fdd957c2e58c4b0fb733381823c0fc92e3cff6a8dc70081. 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/GBKQU2199017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329e1366647e2225dd32c73ea387665b56ac53d7eb64062324c004b08a4d8c01. 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/GBKQU2278148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc94ed8bae321fff645397b4d5bb38ca5b58ec5214d788c020c3099bbc5e3e4. 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/GBKQU2278155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe275b9aab0a62c1b86be514af178ad3a9b2c1be568b614c4f38cb74cecbccaac. 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/GBKQU2278156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf51b05212360b4bcdfdfefd7ff45bfe40cfeb78f7e5d83618a299cd67e04181. 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/GBKQU2278162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e813d393a171589baacba5997a4e1939168cd09e1e91a5381e209db44417bb. 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/GBKQU2278165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc846e8bbd7c6626dcb931df62cf1bb6e883b688938dbe587bbac7bd2029a1490. 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/GBKQU1888703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f94b46b88b16c988b431dad2ffe6b6006b893a3af5336ce43911fdc08b01825. 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/GBKQU1816461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddda330dfe405b86e1cb7218e4d150cadea0ab4b85055b0ff864c77cb74b501. 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/GBKQU1816462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4551940fc79e727d9ecfda620596c8c64ad214b1502ef577d7d42c39169552. 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/GBKQU1816463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6515daf271d423776de17747b7dbf8f331b9133da2605e9e3cf5310ee2134a30. 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/GBKQU1816464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dcb3a6150fbbd5fbb67cd0b32172564a641b1c0e9c24ad186a774992b76e86. 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/GBKQU1816466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac999a6599487e6be6f2b1f35690cefd3d35db92d76fabf212c5bf6b8211a26. 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/GBKQU1816470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34694bc38a6bd67c2f337efc46dc433bdcabac4917581a7bb5712f21345abf9e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:49:37Z), 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/GBKQU1761593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07720a0644d2acfc59ee0258a64a585d52a47615690a6d8ce1783ff70c70759. 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/GBKQU1761596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa6d32afbd26bf374baf79d3e0b7df0d7fb47f25092d424a3127f6f6de733c4. 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/GBKQU2252957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424651e7308f359f530dafb72b7e55dc29a012a3a9106c7514ac14a522989090. 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/QZMHM2325927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a5986c99fb11f3e2d2f442a4a82e2a332dcf9db4219bf2f6aa1032f14856fc. 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/GBKQU1752115.