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 0x9778af07a1e5dc8248e8344abe44083cb6327f53065221b719f9f7ff546c85b0. 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/cc966fe4-2f35-4913-a118-b6495d0fd857.json and https://artists.proofprofile.net/proofs/artist/cc966fe4-2f35-4913-a118-b6495d0fd857.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 0xb98eb406423ded065ebf42fe6b4534887fb49d777afcac1851f5ba5567663489. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/GBMFU0600325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3d1212eec101bd205b030e07cb56528b5dc0438255628f617d697a4b70832b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBHBR0400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc091d21781a44fd3eb106282eacf1deb5ade97ca8e006635d88f61cd02294400. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GBHBR0400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08a706220e57e8916d6cb5ca70054e8109b66fa02be1b5fa205f43ae910835c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBHBR0400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccf1ff7891a42c5d6ce24aba0b4bb2f57a0a80a030a50d516405b4d5658e511. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/GBHBR0400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ba67427c6702a3561a4936171d18a4e8999ef153e99535f0f4ffd43558aa2d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBHBR0400327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775f7072350ed92ca55e66cf33934eaa286c8df9c5df050ccae1a521c46b913d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBHBR0400328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcb55ba5b3d9799b69a643bdc82ec8dc0768fae630ae007ae5c257cc23dd905. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBHBR0400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef70e144e039ef6c29a153e2412afb8cb62e9ef34523a1cb028f5b6f8ac27768. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBHBR0400332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50e5449702252e4c9fe7adbfa6d665f2d516ff7769e3eb57ceb827a7730c27f. 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/GBHBR0400333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87ba08af779540e0f5e10148babc37ad724f288f9809c76f1db64a34ce76fa5. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBHBR0400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be75d35b2d450106ece484d8bae5a89138b3da582a4ae2f54effb5ee4e6b044. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:54:24Z), 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/GBHBR0400335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1f7569542b5e8e97899b7ab43170d93ef479ea4dc2c73e281fbafcf010de47. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/GBHBR0400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b5b91218329be7e8461c1c42dbbd165c0738e301282fa9de5289f6de8a9f4f. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/GBHBR0400339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b88f053888a3a6f87d824eafdcd80faab776f69f9cf772c18aacd002481659. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:30:40Z), 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/GBHBR0405783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148dadcfbe16b0ebcdf2f20f80d82c61d643e1f9ead96a3f0ee9bab638831069. 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/GBHBR0405786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96de67fbbcffa8a06216f13ced2f5632b3c6717b70b4843233a07bf38786989. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBMFU0600053.
Air Balloon Road: a Sarah Records compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96de67fbbcffa8a06216f13ced2f5632b3c6717b70b4843233a07bf38786989. 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/GBMFU0600053.
Little Darla Has a Treat for You: Reincarnated Tracks 1995-2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59705941fbbae32b50002af73b10997286f42b9860d536c4c5bfa3288b2a6bc2. 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/USA4D1530016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c74608694809dcd67e19a40e8bf05bffd2078a0c013c217eb9e7bb8f1fb858. 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/USA561426973.