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 0x0f769d7ddee7a026f9be8ad7858e9314b4006a07bc9182072b14fa9c2f8c0fbd. 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/fb661be9-f5fa-4201-8982-b2228e7314e5.json and https://artists.proofprofile.net/proofs/artist/fb661be9-f5fa-4201-8982-b2228e7314e5.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 0x5145e1d2799b3676be3075d58ca9ab0dad5a22e51c3c6958972796391f09a8ca. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMEU32102737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd117aca37408b300733ceecfd9d3f2f9d9b8563c5690c62f15bfa2ae92103266. 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/TCAEK1946177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebe4c288cf0522de7047cbf44c2a10a4dcaae0cd8035e38d0d74da826ea7417. 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/DEA811900295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e91f5966646b27fe3d0eb53670f3c5b7a34ce061d0b72cc08e89f7128c09362. 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/DEMA61900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642ad7d4e9d14fad49f2673abd22fb3a1b71a36f90b6ac28fc079d8f79065758. 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/NLF711908416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d287986cb6ac330f5c5f2cc01f13722914a46001e1c25120a1d235e6a766b4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLF711906249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a8448c2d835f4c1ad3e883931445edbf443096a07f2e2759ebb08b404c8155. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF711907031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4830a77606103934ed716a12c0c67e5c352718a3c2ede7bc8ec5409fcc5041c. 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/NLF711906248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527ebcab2d26aaf08acc496b4de6bfa6df7d0a4b5c704d24fab9cba5653d6dd6. 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/NLF711909801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc9037722fe67f57cd47a4500c46379fac4b76b952e1f1d004384362ec67551. 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/NLF711905177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f4b8b21e72e6595e8fb276177067e986084c7789463483568c6e39fb269d4b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLF711904036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afb67d33366974f637b0c78791f0e06f9335516a1ceb5e8d30597f0e28eb904. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6MZ1810839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d99b0a1f25034db4e59522b0507bef11d5b9ca2f2fa401ffd09667de213e53. 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/QZHN82191326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93010c0a51aa31295d1f2d5b43bf12b5d35bcbe7ed939e74ced5b5482d9fafe7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHN82191328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6f4b9df16e4d8b059d551f1547f2e09f9f5c5b00a06164b0b771873c0e8215. 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/QZHN82191329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5072294c255df55a81ce1bd4fc3571413e50b2c882a174a5dab0e2ac3de06c9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ATBU61901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48615d6dd59fdd57637e730b347124782826d2d1a6440bdc972d9be8f4e7313. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLF711909595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b96af2b8e40054cd9f410c2ec62697b20724b17b40479fe75fbf994705758fe. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FR92U1900440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d106edb702f58371f28f5d5339a34edaf96e0372b437d50fe2e03fc3d521303. 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/FR92U1900480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38a70b35aeb3d48541a9daa90cace2507bc6ef90a0d6999be3eb7d53bba68b6. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FR92U1900460.
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
Chill Executive Officer (CEO), Vol. 21 [Selected by Maykel Piron]