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 0x8b513c532fe8bbaaf6721958f9f103af2b582f6899c5f1b4eeba1c7b686bd845. 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/6f9f18a1-ae09-47ec-9ad1-fcb07786223b.json and https://artists.proofprofile.net/proofs/artist/6f9f18a1-ae09-47ec-9ad1-fcb07786223b.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 0xcb14c084ec3ff13d9b97de1ed50f2a3d1617992918aa024748d38397765af0e3. 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/SEVOZ1400602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092bc5204b24cba21741b34bc9f78f116c81838626d801265c692e0d07bb316c. 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/SEVOZ1400612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c03954ea26fac6032c9d57f6225ec1f5632649313e592c0b95ab5949f5f13c7. 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/SEVOZ1400606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06acbdf64d631c9306395b9ef64e882024c04c0a42167501486699c72c27231. 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/SEVOZ1400610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422c606b25190370e3ed66301c95c5cd696cc0160a8f355a4b862a2486148185. 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/SEVOZ1400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09d48c39b3bb26d311ed3d7f8793351a00310ecc327f18e8b98c6f964ee9710. 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/SEVOZ1400603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa869439c3113b23ed2317c4c8e1161d72c9838e62835f0bad873eccf127718. 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/SEVOZ1400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41030f5c498af67fbd9c8f018d60e5a404cff8f4cf0cddf8b759b810de7b10e. 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/SEVOZ1400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cc17aafcc029a7b849c86b52c45bbc5c02d129396409c8b948cff812643957. 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/SEVOZ1400605.
That's Just the Way I Am (feat. Peter Asplund)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cc4a76686098735efb05157d74e10fa212af3893eb6de759c43f9686152376. 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/SEVOZ1400608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc1c2ea9a3df2c1bb8ce94143d5b92271592550c089c6be319b3b5f2bf47f87. 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/SEVOZ1400609.
Nobody Knows the Trouble I've Seen (feat. Peter Asplund)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800de894f9d76895d63dee9edd0b92ae23a9e8ffa977af6ffd534c9d4234dfa0. 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/SEVOZ1400611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cc4a76686098735efb05157d74e10fa212af3893eb6de759c43f9686152376. 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/SEVOZ1400608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3bb4c7d654c0bd607a44c3c3e91f0209a67e29df77a92db035ab8bcaed4405. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SEBAA2201201.
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 0xd71a7f7a4ec802f650122e121d8f7b9b065533b207214cfe2cf613d62788ae9a. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/SEBAA2201202.
What are You Doing The Rest of Your Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc511d714e5a094de96ecf9f7f997760ca92e01c1d550a62289bdeda96e017892. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/SEBAA2201203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e0d5fd5294cf4e8187ea65ad8260da13cca635fe1f7840a917d3428be66c2f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEBAA2201204.