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 0x82bda0c16643e3814a255e05365daa5bcff39c7dba357c068f9e85651aacf0aa. 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/825317ad-cbf3-4ee9-8eca-a9ebbe21c376.json and https://artists.proofprofile.net/proofs/artist/825317ad-cbf3-4ee9-8eca-a9ebbe21c376.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 0x78252cbae5a80435f08a0140adcc4a6087971d451b6bd2e73a896d5b79f9bb06. 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/UKXZE2400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b6c805d541dfc30bf9ec7a24bb4fbf9c5c4f4ed6c78eec668402306f0a8d54. 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/UKXZE2400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaac90785c13cdf7704c95de0af3b64365a7f0f86f321746a62b8bab47fd72f8. 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/GB6TC2412001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaac90785c13cdf7704c95de0af3b64365a7f0f86f321746a62b8bab47fd72f8. 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/GB6TC2412001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4a71309c9446fff5a5bccd3ccc856d71587b147cd3e005c6714fbffce4936d. 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/GB6TC2412002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351d31cb166cf5e96fd96bb55557e98ef069b16c3539cf3a7198ddf6328225a1. 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/GB6TC2412003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351d31cb166cf5e96fd96bb55557e98ef069b16c3539cf3a7198ddf6328225a1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GB6TC2412003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4a71309c9446fff5a5bccd3ccc856d71587b147cd3e005c6714fbffce4936d. 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/GB6TC2412002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1a914380959d67e9de8a2c0445bed9408d528d7d4b8bb98c2777882aa14645. 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/CA5KR2380443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f20894c1b1a2bbeea3557d8b39559bc743ad28450296092ab56a16b2b85d00. 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/DEAR42214690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162f7ddf6da716ec7fc1ff034dde69fa6b1c1f7eb3cead8f038350655b3b7f44. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEAR42249697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c6c7d98bf651da75bed28b0386c9e4cc8736ae516a4af179f1da13fcb49340. 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/UKGHE2200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7dfb80fb47072cf5cedd30507d95e8a45d3b50f35b5d85f9f9945909c8c0fc. 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/UKGHE2200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a0db006cc7c26aabdc5b23bd846c089afad07222eeafa59437672883ea1ea5. 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/GBPWR2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157d284a7a5e3728fc2fb9163297dcd09083b06cfac032f4746e8194b5de6a44. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRIDO2113756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423440ef3f9e890aabbb6eb3d7290df7aa4892bc8ec3b99214c718e13b7ac327. 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/UKYJJ2000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c690347d375b9f89c3c77a1b822a70155f5f27b4043d78387a23ce16f7cc2bd. 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/CA5KR2047187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa7b311b4b3ddfd861f701a59fcb9fb39b717ae1377b833cbdea1463129927e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA5KR2047188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a53e0bf1db4683079f57470f1075e75b809a8d8fbebe3567916c789b7e5c18a. 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/DEAR42032243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2b495bef6b888cc7d83fbbb109f57bddc9b087da84d04d61fb58964ed0bbfc. 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/DEAR42032583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf17daadd07a7339ca12373e189a9b43bd2c549248cd41d5cfff0bc9ef40d8b5. 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/DEAR42085880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb080258ce45bc5956ea3733137513b3fe2dae861509fa81e6ad1a40222b3c2. 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/CA5KR2001807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e1a59f6f61464cc50023a26692129e0fad6ba8a6863c67fa88ab0ebecff541. 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/CA5KR2001808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba13e77ef34f83c9ac85f3c2b1c8d081aa4fc500224287a8e27a058c78f2cbbd. 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/FRIDO1911594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5997bef12fa7dbd61ebfc88ab53eb52c317a06de2d7ef5410900be356b61457. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKFTL1600125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb04501f4b71a18531fee759a0a6da3cbb90e714d5f59f54f9656db95fc540a0. 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/UK55R1800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dbf4d3bd7f6537271c99051299ab2e3cac6fdcaa5646335bacec8153a16cc7. 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/GB8KE1854507.
Let Surround This Planet / The Primal Source
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c13706f99e9c91b60b8bca6a875eee23070a8cc8a1368b4d51ca69ab29ff34. 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/GBSJN1301079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd55905d4428e4ad8f73d3be7c8ff570e4c6adae5fd5a1d729e285fdfdcb36c6. 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/GBSJN1301110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e953ca11cb1aca9c06e61641534dc4f228502346872c2b0e372c852f38cc85. 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/CA5KR2063356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65c3ea7f942666810b9af9bb098fe29ce3adf2caaf1b28148d1d6764d531090. 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/CA5KR2063353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6277d19a118418119426ed4dfecf40e2410ef9137c6f1d637ba22ed35e5beea. 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/CA5KR2063357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59607b3f1704000d1bd8b2c5115fee65b9808921eb3fdc154fe0d84776d8b7c2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRIDO2411937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341f6f4cf73a6648e3c419a3717e735778e664c8f71bcb8d7354748da4a50214. 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/FRIDO2410010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921e0b12f2ea0d572cc04db63236ac9583cdb3f6c022e1124fdb2e3c613111b8. 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/FRIDO2210020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68857dce6fd0c16302579566524c5e9e723ed7f04acf561848e37c0c6bb67a6. 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/FRIDO2413482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbe52b67b0c93d32f182eadf49fa9aeaaab4ac2d76c57d3863e52d65249beff. 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/DEAR41948173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7976bedad28595638269ba8257e165dc3574b7b5364291548484c5c8ee9fdee. 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/DEAR41964109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78252cbae5a80435f08a0140adcc4a6087971d451b6bd2e73a896d5b79f9bb06. 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/UKXZE2400062.