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 0x37633add0ec425c4309bede022911858e98de94cfa750293e062ca2654617df8. 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/13416b69-6500-4c0b-aff9-13a079e2918a.json and https://artists.proofprofile.net/proofs/artist/13416b69-6500-4c0b-aff9-13a079e2918a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Don’t Wanna See You Try (The One Where I Don't Curse)
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 0x079be8e001c11bc04e1f062420265de21579a7a5ee3598a689b60d6d640ce5db. 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/USAT22401747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890e00e225fb004dc79d392a793d9b3f4e421349964510e353f3799839b7cfba. 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/USAT22313899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394c02009d67fc1fae58fb12ccb2f495b2482dd9ac87627cfda786fa819410c4. 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/USAT22307287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cbd028db0c02cf400b5ecf214a029c9aeeb30fc04dd06d85dc975d9e25153a. 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/USAT22300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6183ae1dc7c36b385b2ae7353be4a3533b21d2aa6b20adc9e227765962d6a772. 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/USAT22303631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecba89fbb5e37ca2a65f96fab743d197f2f76f7dad672ca7378a701d43eb1d9. 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/USAT22303632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0ad4497cb72494dba4c4611e5aa8d5ce6dd67bd7672f529129f9a499f41e6b. 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/USAT22302715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe444999ff867eab0f1bc0d4b1b63442ec38d7558babe006ca620d8cb680cd2e3. 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/USAT22303633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cbd028db0c02cf400b5ecf214a029c9aeeb30fc04dd06d85dc975d9e25153a. 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/USAT22300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb854edb61016ce1009173ab6e9c756eebc0749f0f257fa3e1992ea0834c82f27. 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/USAT22214014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f11cbe867ed803e0c593de32cf35c546abc0035d531a59e8fd446ae6ab056b. 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/USAT22303634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c7e16471588acb0c5b14b98a62ea857a75a4b06b1695204ad8db201590fdb6. 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/USAT22301179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa64b76619610d954f231b8cf2c2034c710cf9ec2a39e53767bae5fe12765ef5. 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/USAT22221012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb854edb61016ce1009173ab6e9c756eebc0749f0f257fa3e1992ea0834c82f27. 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/USAT22214014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86864be3a33de152d46ca297509ffaa1e2900ee5b51dcd0d9c44f57a81d3b718. 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/CH7812225664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f154b5d1baddce2dc501c7287a0e294882d84bd88e182ff68b4461dd1e3fb8a. 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/QZHNA2294170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e13b03556bb799ad93d095e65793034579a702ab742f2d50faa12484d882cd. 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/QZES82296882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d535579cc2f861cfc7e7c59ad84b55346146cce1cabac6829e7aaf34fae4113. 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/QZFZ72217756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7330b2ee78f2902aa600a1b20270fa89df7ea122c01f1b62924a6bc14bbb13. 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/QZTAT2180812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7330b2ee78f2902aa600a1b20270fa89df7ea122c01f1b62924a6bc14bbb13. 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/QZTAT2180812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8317aa5e191f215dcb8a1545c5a6d0d9f70992a1893de781c711214316bb29. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/GBKPL2139531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca7519401b2a0185d6560937600f2702a78c273469ca843d29949ce62a9dde7. 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/GBKPL2166273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa4674728c7da60387e7df0023ff858c9c0816f69ac99bfeafb0d55f026e594. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKPL2144915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ed1664c26da150f2e29e2ec9b4b280a713022e58336125e8ce5d3aec90009a. 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/GBKPL2162692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704cd78e13dea1dbeebda03a3db542eb3f6b506bb00f332f7b59e6aca8b9c6e7. 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/GBKPL2153986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa4674728c7da60387e7df0023ff858c9c0816f69ac99bfeafb0d55f026e594. 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/GBKPL2144915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8317aa5e191f215dcb8a1545c5a6d0d9f70992a1893de781c711214316bb29. 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/GBKPL2139531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611e5620a3e9de96821d2ec1df449949121b22e53b8cee8e70de16b232bb6688. 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/TCADM1868775.