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 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 0xc430f39a00c25e75e8b236061306358c1578690d31215b9bf6b414afc82491de. 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/1721de93-fa20-413e-b0f2-f3de2121a66f.json and https://artists.proofprofile.net/proofs/artist/1721de93-fa20-413e-b0f2-f3de2121a66f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ringing Temple (Decreased Version) + Journey - Mix Cut
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 0x6adcae378daf3685fe588842cfb2f292c11e186f0825bb852aab03ff6deab3b6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUXN21727784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34441a4969a8cb89d297f4965a0697dbe36af030d687d1128e17d8141340766. 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/GBWZD1506901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da35a30b0fad4b1f90194578982208f5c601142094dfbcd14ac79a8e913a5b1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWZD1506902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba56b7182236bfd457ee7b49b2094b635330dba30bcb38343c4538494aa42e39. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWZD1506903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805f459ceb165561aaf17a7a3eca3b46ba09ff5c0e7aa78721576c52e4688747. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWZD1506904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e92218a37ccc42f7f3e3ee09d5b029366dcea789bc4b5b5d2b5dc6c8f58f28. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWZD1506905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca4cb04e5940248b05da10a9fa3c90f230e5618fb245af18c882d5fc14c3b8f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBWZD1506906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f51d6f02adef76262d1536c6fe61623c9643a52233c876a730bbd04d796f2b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBWZD1506907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377c5750f25cc8b380293b769112cc3c14e69f60bb85e5713c7591921278d412. 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/GBWZD1506908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92075e931f6f27ae273844729889e7881713eb4031d304ba96d0271379e81faf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWZD1506909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a4feefbcf532ccb11df59e156fff3dfad4483681708935beea54460de920fc. 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/GBWZD1506910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb592df9feabd3c1ba33393e7cc8269c9c066027321b61001800464e646d95ff2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWZD1506911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44e0c319284a6055399c131015adf94da3dc0899efdc3685a4a0e344970252e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWZD1506912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfc832827e8f907421173087bf94abd5e653534afe8a67782f19019bb1a9010. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB45A1600555.
Future Disco, Vol. 9 - A Disco Love Affair
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9623a9b6fabbf3a810ff3606513bbd8033862096fc620dc768ec99d1211756de. 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/DEY470934197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a0c25ec65888dd2e657044d8bf2c0d9fecb0d9a23285e6851c93739473e942. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCKB1400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2109ddc5d10a70856dfb68a925c1f35387debe4b8d1f1495cc439c92c2f8ad21. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCKB1400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714a4543210452eab20f733805b3ec7941de54dac07cd8bf13243d5810b5597b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCKB1400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac31983bb7e3cb1d77be3f69e71deda7e583bd1dc41e81ea1ea599c3fef6c56b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBENL1501488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0782af8426324f8af7640ab707522f9add9cb2db73ec04647b1b609890791cc2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBENL1701981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5afeff2b7f9e429f247c1abcaef0cc8cfd93ca5a7c6c66189f8ca9e014e30b8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBENL1701982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26ef01acb07b9bfd0cb68a04ceadb8cdd701e55fc20288f5bb87c808d1533c8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBENL1601747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f63d677d169d588766eeab8921a9e0c57371cc1e4429d24f0ca2db59e7c377. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBQQV1200201.