1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd98394f1358786ec72c61ecfdb4944864133bd389cfb75d79d6129e5ded7fd55. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e9c1c4f-f743-4046-8fd7-946998f6f300.json and https://artists.proofprofile.net/proofs/artist/4e9c1c4f-f743-4046-8fd7-946998f6f300.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 → block OTSBitcoinBlock must exist at that height 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 0x60220640974c151c1d383d5118a6e373d469f0d338569c7b2f70e6352dc15b5f. 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/GBAJX9641901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e7c43ffa5d1dd46fa57a9d503ca2e907f27d0cfb51f3f452813ea5c7a2a0e1. 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/GBAJX9641904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb69af37c4e6ddf65abc37fc3908deb185464aa96c83d1aac759abd8ec568a1. 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/GBAJX9641905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ba5fa3a258dcc372fd98cb481a56d1c8798045f1e3fac249b0834062238da1. 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/GBAJX9641907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4c0d705e34f7d1f8c575f0349f651acf0709abcdf058c411cc006c7ad58fbc. 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/GBAJX9641909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ab51797c5267470e219d42b797c3b94fcf000b86caf6ac0341614239afa8e0. 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/GBAJX9641912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1531a963f6274f8fd6f371a2e854e0883c3bc9d6a9e475f0612ba4a3dd82491c. 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/GBAJX9641916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf587b00b6a93ceac435622af0fa9453d1b89ff00cc8b1a9b6d248eae063dc556. 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/GBAJX9641918.
Grand Old Duke of York - Lion and the Unicorn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019c2588a8b74ea9a1c60759453506bc0c192eb14ae02fb6fbfc8352e6c4d296. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJX9641928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37a13f12902ed4c14e680e73eaad1b4cc713799afacc78744c83a0403c69a84. 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/GBAJX9641929.
Pussy Cat, Pussy Cat, Where Have You Been?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361ee9812f8427f91352d74c6a9ee11892f99013bbd9dabe8ae4aa21a564bc58. 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/GBAJX9641930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8c2b637952264179c446dbc5cb84d486a6538e49c98770bfe47967f6ca5a76. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJX9641931.
My Daddy Is Dead, But I Can't Tell You How
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc765c7b964a0121d1f0240eb0c725df32844ba921c9a33a754539239a9e5113. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJX9641932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35906e146790c93944755171bcab6e7fcf2bf3a5ee41d9b03a8ee87c3910ca2. 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/GBAJX9641935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ef793cc9591e25abd64c77b415c29d08fb112ccc3e0128ad56e2e0f7b019e2. 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/GBAJX9641936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fc263457a0021c4c059a70b881a3bbd8ce56ef093a875df5d447f7515b77af. 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/GBAJX9641937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa621d2866b5e561f71f49388bce0657f2eee8cd51a037983e78188b4bb7f149e. 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/GBAJX9641938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf12544a1fb0223b44b6de4d01c0a6d648ff124553e251638e5e7d376b97e8ed. 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/GBAJX9641940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fbb4978ea94608c9ba36d5298ffa5470333ee057003a0fe870a39136eeda4b. 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/GBAJX9641941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b3760a73f9d5fc81a6a545c7610455aff4e524f9b5ef13dc0da903f3853277. 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/GBAJX9641942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f89928fab17f9cf617658ba8b5f8af40778c2d4918704e94c405bcde8f87c7. 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/GBAJX9641943.
Oh, What Have You Got for Dinner Mrs. Bond?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3795be0db405c45a498a091f522364342be1c2f807b894351ae774805b965108. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJX9641944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c476768579db3576d141ef58a50928f161146dddeab6a772f6784e11af9745. 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/GBAJX9641945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88157386640dc111ba6e5168d35091f9542fcfd9272dcac4c4b64eeab62eff8. 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/GBAJX9641948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f783be28dcc007aa7690144bdfe96078e77ac8c31c34dbcd877a617df383de. 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/GBAJX9641949.