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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7731247ebd6e3b0a9a7e1517edb17e0ec36817eaf002814162ae94e18d46304c. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75c8b490-2ebb-4079-8544-6e38b3a2464a.json and https://artists.proofprofile.net/proofs/artist/75c8b490-2ebb-4079-8544-6e38b3a2464a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Reign of Pure Madness and Contagious Perversion
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd840e45c74136c6a7d8b6b2c95fba8e77d928f8b04a14e9b796ad7ab404b3c86. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCADG1780355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633fbca1f3aa1eef2802f9a320e8b609678649d427bffa09b68ca1c70392f5ca. 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/TCADG1780356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b47c90efc771c3c9ba5a2000cc7a5248e7df94ed5dabfbcd42e9d0d155ad4a7. 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/TCADG1780359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb663f7ccf877254c8bdeeb43a756eeb097b8e00d41b0f61f6988711ffda4e3f6. 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/TCADG1780360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3662266ba438aac98f93eea12b28fbfd5bdec3029d42204eae5e1637957ff2e0. 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/TCADG1780362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf49c68c15a497e16dc4bed83e114095a248c1bfb70d2397a141bf684fd7db4e. 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/TCADG1780363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e5d80d06d0e7f919f3fd6c345d420eca048e9766789483341e4f8f5629f7b9. 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/TCADG1780366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301c3c62ccf71e43e1eec050407b2105012e816a7318bd3a337af91bf8c87dc5. 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/TCADG1780367.
Making Pickles of Anorexic Infants in a Demijohn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa05dd04a5ca7274b70fc77e2556f60cec10e2700b50f3cfc277ef77065c520d. 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/TCADG1780368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbed2d314ab9bd9c1b738ff0cea7079d78f36f148911b325429b2927cc408db. 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/TCADG1780369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ea98b02de42d6d2deecc0ee5ce38659d29f6df1cd448d58a5b8c90a82e9b4d. 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/TCADG1780371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb69103a494ded006c811452debec7c2aed2fafcb87804fa7d525b087ed68ef3. 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/TCADG1780372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa755056b1381648ea65e88bdc8084937a755560c6d4cc442367001240c373ced. 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/TCAEK1989491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e481fac1aad642dbc54f59f5185033ae0bb508d33b798c8cb629163df6affc4. 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/TCAEK1989494.
Your Daughter Was the Main Actress in My Snuffporn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf0938f7b66724388d999f8865068ff3079438f414c87bde69d5a4e76982b74. 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/TCAEK1989495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcd22b2b5690d6abe63ef4497f5b46d88cd9432731ddae50686df406af21440. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TCAEK1989496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21786b25ae55dfce2817edd4fd076a4420212b19807e0468695f02e6800027a0. 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/TCAEK1989497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75400d3141ba8b431f6ffaadc3ec95d82180584371eb939144489f0b8265c9ff. 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/TCAEK1989498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14085e6ad5cacd098216e9570dd34944a6c3bea419bdfbac3cf0ce580d61b314. 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/TCAEK1989500.