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 0x0c7d6d8476abfe5d3ed283943c9a555335c757067b3132813d9489f534904051. 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/647d9335-df70-42ae-98a2-488e032cc15e.json and https://artists.proofprofile.net/proofs/artist/647d9335-df70-42ae-98a2-488e032cc15e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summer Love (Original Motion Picture Soundtrack)
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 0xbd31b25812527be6fb0a8696ba9170ffb5e94a2081747a83b284d51299f6d156. 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/SE6QE2142484.
तिमीलाई हेर्ने बानी पर्‍यो Timilai Herne Baani Paryo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7152c42d0b82066b6929bb29419353f6d50b8b40c4141afb484b669b7d173422. 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/QZS8H2101145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f27ae6482c98d326fa794008fefbba43ae1697cb3c669d3bba789fee7c6db4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE6XW2239438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbfca15ce84f156a3169c94c0a30b526b2d171d18ef6f168b00d4801493ff7e. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/USHM82377674.
तिमीलाई हेर्ने बानी पर्यो Timilai Herne Baani Paryo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b30776756f563f0e428848fa6180fef33ab4d75b74e25efb6585122b739125. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SE6TI2337641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eedf4d853eed921ca2602c1763274cd86a3f530177067fc3fe307e48e6934f7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SE6XW2389610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d52d36f66e8969188c462d0b6ff18a668c2d942275abb669906b9f9e1e70a1b. 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/SE6SA2347479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515c64aef2f98c2d71d7dd7e7f9c082678d642b4e3b5a2cd2da60732fdcfaf64. 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/QZZ7W2426768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f901a1766520d73f13b53400c7ed80c4c540e7be8887ad17e27f2fcae70dded. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZN882432155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11873054ec2611b9b864300bf805057bf6b7ab010629491daa7128812c1fd52d. 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/QZN882431986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098945beaeec945e6f75d93dc89c467c54a0381162747c061cc730c2415710e2. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CAENV2557311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098945beaeec945e6f75d93dc89c467c54a0381162747c061cc730c2415710e2. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/CAENV2557311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f484c3a3c6bb530b01d7c4f5c24cd10714aa24eb7ca641a57d90c4d4984895. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:30:02Z), 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/CAGOO2549709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36424adef115d62618c98af6a8dbd12fb9f45d6f2285bf00978d389a571f74a4. 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/GXBAV2152855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1f02a79cb77fe95ef8dc877cac2de91ab38f2a810115ac13438c837fe051f9. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:25:00Z), 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/GXBAV2121451.