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 0xe69ad955ead2ad9d808c8db33f857a44e3858428370aaa49a736058c5bba3f23. 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/4540bd0c-9b78-4374-ad34-5297db04254b.json and https://artists.proofprofile.net/proofs/artist/4540bd0c-9b78-4374-ad34-5297db04254b.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 0xc4d752cebec98b8064e82a4c61d8c8cabde55e959f389b7961de31851e4be14a. 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/USSW19548162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbff7cf8c3879d76a824e9349b8e3c7b5482eb321149a1a5babaa7d01eee8969. 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/USSW19548164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ca7d407f2ba88eebcd4f148f22bb32db2977009b0b3ce99a72bba5a93eeffd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USSW19548169.
Nothing But The Blood Of Jesus / At The Cross / There Is A Fountain Filled With Blood / To God Be The Glory / And Can It Be / When I Survey The Wonderous Cross / Amazing Grace (Medley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073405942caa1fa1ea6977413387fd5f4b94a3c3404256a83c33f279c1b19b4f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:33:54Z), 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/USSW19548171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2b333173524837f4b5c5411160e3a064376fa6a542167c3d114c348cd71040. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USSW19548176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ebd9f138fdd670d705f513f4ba744d9da2445d3352414ad38e5ec8e5d57564. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USSW19548178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b9a8a3c2122cb978fdaf202529b02e91fb517530688c6292aa9588b069b3b4. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USSW19649907.
Come Thou Fount - 25 Hymns You Love To Sing Album Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42569d39dd29b83583ad6ecc8aa5e991ed47a1f17df3243464790c2c8f83267. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USSW19548184.
All Hail The Power Of Jesus Name / Crown Him With Many Crowns / O For A Thousand Tongues / Fairest Lord Jesus / My Jesus I Love Thee / Holy Holy Holy (Medley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2d945b68bd962909ef4e1bff91dfd3d223251d375d09cfb844c2fb42e4d475. 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/USSW19548186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6330013330a4fa61d2d7fe4cb91d44265ecc5fd729fd8aad9d3908496ca72d55. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USSW19548188.