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 0x948c387a746da5df64c2bd633c5f284391105d889fdbb7073d900b7641bed31b. 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/8960fb30-42e4-4d85-bf50-3aee8aa261a9.json and https://artists.proofprofile.net/proofs/artist/8960fb30-42e4-4d85-bf50-3aee8aa261a9.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 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 0xeffdd991a0a06d7badc1885160ea5c32055561a80e7b40d48c040860d849147c. 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/QMANG2404423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbf718a25318c7d4faa2b6069600fa37de2a2ef50f39317e9c87993e9912e11. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QM3DF2403262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608891ad2e2103ec2a8a88a3c80f8c7498b1382b557de16fc76aee986eced36c. 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/QMANG2423645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb1a3da01c91b25addb1df8db7fe3aecb0716faa637059a7d4ef5f48b6e69d2. 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/QM3DF2497347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1aa815ddb604529e2c2f43548fb14c66b5eb9b7b6081183e4d97f9fe912b2e0. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QMANG2400889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4f2062cb403cdfdd80a46c4d4c67d8a79405313c298b60f6f2c3e53443ed6c. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USANG2427919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b5a28c0fdb06d6a6fec258f2073ab1409fcecac8dc2e356b59f23dd144e436. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMANG2458626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119d4e4508524591d2ae3b44ef56326fb1559e1f86eedcf5c15faac8bd9bbb89. 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/US3DF2430421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83185a38d5960321d763994995e040ebb091fbe9dfd39048ed4ef2130a9b5b2d. 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/QM3DF2409265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bd1deb42a7a1b20d12be838d4dbf4a506a24ca5bcf9e04b01444d8deed904b. 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/US3DF2488297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e484f63aaf7d832b399ea5ee18cf869faa0ef454c44f925cfa50441c0da3ea. 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/US3DF2436450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a1ad2e6bdc6c6d8963c1019414485a92bfb63ebe3ceda104bcd27fe4f4eefe. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QM3DF2446470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5886ec6c4acf5ff41215f4dd8ddf8158cf3769628d1c7b3e0d2bc32f89a43153. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USANG2489947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae06bb4d1612c4ad390e743a49e236f495d7186876a229c4997f2be5da3cb3f. 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/QM3DF2421453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28befb80ef3d5fae4e9706cd002880e1deeb60a7f52021ec0959325ab8970b2. 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/QM3DF2417438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c16724c95cb8207a47021173d2d78e2119ee7fcc38ce788b6ebdb138495ec63. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USANG2431722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68d43b259dfb2b69695a6f2ef0fa7e12b2ab903a90a86f5325c15d1e03a0057. 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/US3DF2444391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53191ea09200b340c4274ef3293075489730dcdad93303b4de1d7a61a172e177. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/US3DF2496489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2240911ea272d0d5f544b318be0f1067d433ab89722001fea81568aab9d77f2. 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/QMANG2425147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55028b0f9a8b8e78682dc288cf5fe17d5d2d9989d571ab65bdf5e624a85a5ec. 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/USANG2480133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b028f29ac4bfbab77038ed9fd56c4e9792fcd8fb27d238255fe5e1bf0ecc82. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USANG2412954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0796b3fd62ded64d5c0ac39e6ab43ea38621a8c7105b9ddbd9dbef3818016788. 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/FXR592400963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499cf0773d92f4d1891149d773acd6f8cf7339009e097fac06f12493edf28c10. 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/FXR592401478.
my world is a bubble and it's about to burst
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c2b27648353fb83c1455c46ce80f719b00e026b02c918053f44bc3462b3037. 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/FXR592401294.