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 0xb815bb3c2d26fbf91130ff0b4e8786da0ce4e5bafe9eefea9beb765230f8a1c5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4043ec59-8592-4e76-8fed-59237eba39e0.json and https://artists.proofprofile.net/proofs/artist/4043ec59-8592-4e76-8fed-59237eba39e0.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 0xafbb5ebb5b082f4ba9ca6f56068837942f809f2b9e040d7190d23abc96962607. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTB32356784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86c312dca04962310c1252442290ca895741cabe4f8430cd477e0015178f3d0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:02:34Z), 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/QZWFH2373297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70af6d3f01c090c0b3948e5ff24f9e419d821e98930f60cb55ad5292e89f13aa. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZFZ72440795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010f9ec2fe1ebfb383514fefc647d85ad38c0b1a8a0139f3aecbd5a269acc691. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZFZ72440796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40210072aabdb0e138f23226725b7da847091f60cd3c6d453d72d5a6a7a32185. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZES92497531.
In Divine Harmony - Nature Sounds Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420546ec159ce8e2f117fde942d692307c18ba4f0134c4413135daa06eada0b5. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZES92497532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650641ed2d92bb0849bcd89ecc8ea5fc68764bd00240ae834949c902e52e4070. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZHNA2453433.
You Can Already Celebrate - Nature Sounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adf9f5cd5c5c6f7c4a296144d33362deed8befb9665ad976b7537ef9e707a7a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZHNA2453434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fa5d4a9e2745848ce066e2b792ec624bc99852b6afeac42649abe523475921. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6H2441423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954f435892ad66e21bfe109225ec4d06485d26b451e9e04a2849747b59b1f1a7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZK6H2441424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f268ed8b609dfe4e32bfada040da8a1640558e04e187804f549e399d79b0aa1. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZMEQ2445330.
Be Still And Know - Nature Sounds Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173be384605791b71a87685bdc82a78758813fa621409ffd996939e3705eedf7. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZMEQ2445331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df2e070ddb5894a3ea05d9e059112e3eb26aff5791eccd7e05a4b1d5b9918dd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWX2429404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93b770decadb00e96d73ebab8d1f989f85a17ccbab46e0448daec15c3c790bb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAT2442905.
What You Seek Is Seeking You - NS Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277da106e1b8e81f9cc77c5f1e01fbce84d14b9504900528670c33619a005977. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZTAT2442906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218b583456754209e4a80e3439f43b80c0f599cc9d6daeefaa1351671e30404c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB72477887.
Recenter, Rebalance - In The Garden Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68077adb0f0d089a6fbbb893dda4e8156d101eca3a278c7a89d5d86a3a232fb2. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTB72477888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd91358a61037110b827f903756d74beb205ea67fc455125bfbedebba0dd128. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTBD2428232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be2671f94b175738179ca48827194c47565b02f66d0e43a6a83996311300069. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFH2458334.
The Fountain Of Health - In The Garden Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267bc912a04f3cfafa202eb77bb82ab061af1794e4f9a21b0d8e25812be1ab64. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZWFH2458335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8d400a5c22e92c3e6625d1d820ec234855c41a1a9ad6cf5bc187010e3a1735. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZZ7N2424701.
The Fountain Of Well-Being - In The Garden Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1370318341aa7f2676f0489b432697b2ba88e46b3c39e15b92c8973a07757b2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZZ7N2424702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fe272fae542c168af21a077a254b6b7e539221f5a687dc29d081c2fc9d7806. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:43:24Z), 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/UKZGC2409849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd91358a61037110b827f903756d74beb205ea67fc455125bfbedebba0dd128. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTBD2428232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1370318341aa7f2676f0489b432697b2ba88e46b3c39e15b92c8973a07757b2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ7N2424702.