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 0x2e94ea7f146a9043a57764caaa33ded9cda266b7a8040a146bbb443a3919f19d. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa48ca4b-3a5e-4ed4-b095-849163c88bef.json and https://artists.proofprofile.net/proofs/artist/aa48ca4b-3a5e-4ed4-b095-849163c88bef.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 0xdde485b21e94469755fb88894b978ed1b1843cfab23f8164a43b16aeb64a5e5b. 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/BEEG62403201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45cd79a20dee0b4e9703076308142afa35a4be38ab49378b45327e7b59d89f8. 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/BEEG62403202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dddec4cc56d35a3ee23137928beda17422dbe70249176af8eed7826ca12bb38. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:52:25Z), 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/BEEG62403203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2019655eaffff87d779d6c2db8ae8ef62e52dc0e8b5865636b0e3a4a965cea. 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/BEEG62403204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178a894705231d738cc54d67e65b300b47f360148eb0c6c55fd008056bb83829. 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/BEEG62403207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f5962f2e65622c46dffaaece06b48be977538a6bd05fb2ce624c747a4ac545. 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/BEEG62403208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28139ed90dfc0efc50a6def75d2a301fba12ccef967ab6df657aae4ad36202cb. 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/BEEG62403209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46958163b43f6bc34bd413758d023cb05b38bf02d58d411e7e832fe60365d70b. 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/BEEG62403210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160fa090f18db5b44d96f8257d7560c80e64547def851de54b6f9bc7e73085fb. 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/BEEG62403211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6dcca4514540ea89d51c80aca3269b46a531e21ee4cdabdb36a23089459379. 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/BEHM42000401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73d44f33460332f1e7915ac33f06d0795caed8fa0e9e22591ffe1a928e87a44. 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/BEHM42000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354800a19f67da50a725f2f6058aa65e3aa56b3350ad61496f7d7be98a58df8c. 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/BEHM42000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9804d26253ab386f85de8beff2b129c66ad568b45a54f0cf6a5cea8c3354a4. 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/BEHM42000404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0546d90a155985d554429ddbfa35bd62d88ac79093fe88b6b2de144d47a2bf8e. 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/BEHM42000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4930bfcbb97d4780db405f1459acefbfb2abcffbede2a025b062f53e0e3d68c4. 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/BEHM42000406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fa41fd52349cd09943a843db32103c81f0135d1c793168735af99bfe24cda4. 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/BEHM42000407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6535cc21ac40c7ba4a68f49f9dba498be275e843c2e1647414cfc3ac89ccaeec. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEHM42000408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf555cc4e22ca9b0a5557e377600ce2f3343f31fb79eb08554e086d391927a08. 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/BEHM42000411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12efefc941f478bf33e42bb61bd80910cb8326282bb0e5f79112b319afbb438. 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/BEHM42000412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160fa090f18db5b44d96f8257d7560c80e64547def851de54b6f9bc7e73085fb. 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/BEEG62403211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28139ed90dfc0efc50a6def75d2a301fba12ccef967ab6df657aae4ad36202cb. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BEEG62403209.