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 0x6ac5b76fea0bdc0f46520bdb565259575714ff45060a1841e78bebc3fbe4fcf6. 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/7511a79e-bdd1-44b2-8d65-fa5103dec3f7.json and https://artists.proofprofile.net/proofs/artist/7511a79e-bdd1-44b2-8d65-fa5103dec3f7.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 0x7a91324b5aaba58eae015f9c72481b7485db8ec62c5d611aa7f805f2a5e254a6. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/USL4R0710646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcd7f40d649138a0b7de2e9ba2f3c7b23a9a6324c5c0c969278db0f59916490. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/USL4R0710647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2c0be4422a59537bd12a60d6ec206fb213fd7d8ba79f13449b74e53448d05b. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USL4R0710649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef014bc1adee4a3bc77b8841fec222a283c99f0d6bc25c397f36cf8ea57aa91. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USCGJ0855575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2158d7dde1ed703492e466f2dcac7a7763b7fb72248e4d44713736077c544d23. 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/USCGJ0855577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adaa2477846251ae6ce0887f40e72299444d3a38ded80868e3c5865015e7b28. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGJ0855579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf626e02d4c39403fe5b4d94813bf01ec20d893d48164c098d127f8c7f1d31e31. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USCGJ0855581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6844d8000d19d10004b5724735ae317ef7b710dece9525283684cb8284a1a7f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:11:10Z), 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/USCGJ0855582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196d462eddd3d6183645f7de95f5837a0b7af973389343734983b561433512af. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USACX1002297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9885f6b740ecece245e3a68cac510163990bb14b59bfd6feeeb70282fb5dfcf. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USACX1002298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae26535e2af74605aa1e96daf32580d2308b6dffa98bc3a9743fce5f7b4e8f52. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:34:36Z), 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/USACX1002299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe75bd49846a98bd1f09b5c2d9b93412c3d2b1a3596c7ee90d7ff0086fa3e61. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USACX1002301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecbbebd91d8e4d27841e126664b3e1011a3fb47acbe081dd9411be03d057cdf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USACX1002333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891e7a064fe9b3f20e5256198178c801b1d296d1a6296fa090ae692dd48e16f3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USACX1002338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba50c27ab0e17198a2606a0458113b93e6924be4f484c2c0701da5d346df93e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM82130607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cac1f387d67d7e4921aada3059a6be97096d7d88479e27347c5d6104e76f9f5. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USHM82131612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1d67bd5f4256b2e48adcd67fb7a56f4317e740f723fd48b1a5c9d954afa67c. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USHM82131617.
Noah Sat Down and Listened to the Mortification Live E.P. While Having a Coffee