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 0xc7a1bd4a7cc67f3ed4d5dc745dfc0db8f1e7f68dc44149fe954312d0e4165c7b. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a57c282f-19dd-4f3e-ab59-7442143ea9fc.json and https://artists.proofprofile.net/proofs/artist/a57c282f-19dd-4f3e-ab59-7442143ea9fc.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 0x3564ee5061a0c4001401afdb418846c1744b2625a91f7d88bed8c2e91e59c214. 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/QZFYY2007740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9666b824c0abdae78db1acf2af1022a4d5c6a68e0e6737f6825953b10847d897. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZFYY2007734.
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 0x17648f49ab2fa8db0d6fedc5feaa24766ea7c4c912b64ed6b4879ad1cea9b4e5. 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/QZFYX2047530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a53d66a50f4dc978399d79c5a58c6b10e5e26634d683bec5602b421fde5c65. 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/USHM81431928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf46328e77d1a10398d55ea98349a5d503645dbb127691af46e9b715778ac2b. 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/USJ3V1109593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8083c7f1754917e2e097ec14418adfac1dce145deaf82670ed47bf12bee63211. 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/USJ3V1109597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaa18a1c089aedb3298ed6858f07c27d6c3d40073cc8819d575add952acc9bc. 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/USJ3V1109601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148cf91003457c44ebd67711c1ce8c08b7e39c37f4cb8dc907c982f439a11716. 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/USJ3V1109604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e2aed619fc2cc177dd712ac8d7e4684fdfe4050cb0f0452028e7c593802d9d. 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/USJ3V1109605.
The Texas Takeover Dallas Edition Part 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b86172c1bcc26d657f249cc3ca6e3e33d434f95580978839a15b032062d47fd. 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/USAE81134683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e00d2e46100cf47f5b3e3823b5210189898fd626768e070fa4c50c2c1046a1. 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/USAE81134686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b84c90828223a88759977d07cffbd781a89633e27dd4687d276b0acfc442a6. 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/USAE81134687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e33b378b5ea4b6a64c8068ad245131e5dad5752b569b8a326a08dc3ef3c4f6. 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/USAE81134690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40693e764cd6b2fbf603dc12d5c50229e03af21fc6109da73fb6eb94961a211e. 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/USASN1202276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8d3a40b455bb2eb4fed7b3c631811087672afade57cbb552cdca558852fea1. 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/USASN1202277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be867f2b29f18a4a07885d06a6718f3020add61474ae34113beb36c047c3b6d. 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/USASN1202278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87324671ec7321c0e11ddd79b27fff1e101c9170606789cb164df32dee4ca5a8. 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/USASN1202280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa83b1b4ccac2009437aebe23146d406ee60ba34b938006cffc4705e41a68e6b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USASN1202286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bb64fd37a4b50bdbaa12ce1bfb3942ae79991e50c4fbe07c29eeae4912aaa3. 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/USASN1202290.
The Texas Takeover Part 5 (Dallas Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d992a12de75e0763ae1e1a14a4ac5055351f674a26c193795a35a38785a72f. 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/USCGH1492095.
All Day I Dream About Stax (A.D.I.D.A.S)