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 0x2330899ea535a15482e91aec3f7f3cdc107d311775facc6eaf29fdde378b1dd5. 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/e85981db-e5f1-437c-b234-a3b4e6b503ef.json and https://artists.proofprofile.net/proofs/artist/e85981db-e5f1-437c-b234-a3b4e6b503ef.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 0x246c4dcc22c03f40eb61e83003724f15f9a66723b97244c814d2f056bb6a7e4c. 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/QZES92123458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1949862fc61043aa7f8200d49011ff85d2317a275d62d4766a547db628fec0d2. 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/UKW3Z2300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1832a21fc5b4eef15037ec6aef201c06dea3b6ea9d562817753e860542e4e6. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/UKW3Z2300421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e8c3b5d55bcd98aab6ecf1d32b08ce0f192d5821e57e9b2b148fcf772520d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P1831226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e316ea0c4a64762badf5f0ea1443442eaa94e75f85631fd68d49a36cb7ccb8e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USA2P1831227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680b2b04f1b81a54b9b5cb0a0533e50daa78dd88e409cb7d9cafda79ef65d6ff. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USA2P1831228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f384b3ce1550fc21c058931c1a7c73f4e52e4f83f644f324e5b8fc93a0b5a3. 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/USA2P1831229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed7d16355d811801879cc8783ba447b1acd5f610e9f43062b15621bde6eead0. 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/USA2P1831232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188ca7aee03e2b7e81ae934b2946402fdc3887cb58e52694503d6a54bed7de92. 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/QMGAC2500378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bd5d877ca435882cea6901001de503a436df297b0fe153597f40d404efc8fc. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QMGAC2500379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f65ca7f96d07228a5a61fa569d98f6489d802e0639e432031bb6b66d36a6552. 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/QMGAC2400342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ac0cbe6290ae6e0ac9b8548e234b3fefde5bd804497a8d47c496241d0ccf88. 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/QZGXC2500486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345dd65a22ffdbe16276ac6ae872f0e37584034c6a854b4f01beb66be11d9389. 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/QMGAC2400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f65ca7f96d07228a5a61fa569d98f6489d802e0639e432031bb6b66d36a6552. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMGAC2400342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf14eb09ad2e3a27c779e3191e06e18a59b5c7131c681664f8b8f96ab4876aae. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKW3Z2405083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d725b5779b148b4e504b7e384d89cf3380b15c427d6b0a8511efd043d479e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QT2VB2415027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eda9f2a996d4afb346c71cc19d4c64e797aadc8667888c1df6be37f070a3177. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKW3Z2403338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a468e265abce6d1710195260dc6ac43df4babafd413fe5c4c1305bec6f3f01c. 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/UKW3Z2403113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0270914a71e4cdeb328fc80c1acea17ebb33c402b6e801e30395ebdd1c337a2d. 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/AUMEV2492187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e3a73333b6bff173d6249e488780c137704256bcd941f39c5fa3375f178c3c. 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/QMF922450058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249a6bb9e136931f0f7733afe78bb93571fc1673fc7eb3918c9b1a9c258fe53b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKW3Z2401903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf738a8a8e538b7c4272509ed97e76e54d39e56ac2a11bbfaf105d647e4cbc2c9. 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/UKW3Z2400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a9d937b73d8349ab4b27cc51cf5e587b8e7df62240c09a0c1d8e7794ec11c5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKW3Z2303766.
Praise is a Weapon (Reload) - Neon Feather Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246c4dcc22c03f40eb61e83003724f15f9a66723b97244c814d2f056bb6a7e4c. 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/QZES92123458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eaeb2dddf83e72e8ac7ea2f9ae32ff99a287c16bf7c66f6046acd8fec96353. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKW3Z2301804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00dff1865d1239aef98be4ce9f64cd2ed6d3d2e22ce90c45b4a3e5705140429. 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/UKW3Z2201610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe731b382623d83fec292c3185dd591757bbd87de6088458198899b2cc9086fc8. 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/UKW3Z2102333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d826387eaa2f5f4706e55f65a7752b690680929e9bf4072181b272aded4f30a. 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/QMGAC2000418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe2f26b75fb93898090fe81d76731b92a5d2f569c8b90f4e28aa4d7c202eb93. 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/QMGAC2000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb167174e71a9c1fbc44d62f4e4766c8165361fbb3525a9c50053b88ae9ddec92. 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/QMGAC2000155.