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 0x06ffb1f72cb2f6d19aa10f6fd538c7a13c92188b41ec118e3dd0f44839795c1d. 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/b09dd4e2-cd5b-4661-912c-73c4cf10f39c.json and https://artists.proofprofile.net/proofs/artist/b09dd4e2-cd5b-4661-912c-73c4cf10f39c.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 0x34198be5b7f3de5151027e1a83b2621e58a2bf9917e5d9d29ffb3a5ddba9be8b. 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/QZNWP2350433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41099b73e49585b30fcbde10304a8d8bed9c9cdc09a15f6ec7e04d87706a3610. 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/QZNWP2350434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1779fc33e29d8313c81df257fc46c582557779f271cde2db8c8f619f825908d. 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/QZNWP2350435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f65764e8a0c1a4de3c448f162f492b280957d18c16cee8014b820d1f439474. 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/QZNWP2350436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faa494b92adaca821d8087d87587a7f07e42009522c4a870bfdc5bc5d80480e. 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/QZNWP2350437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9674aa39ddc60feb3bfe0f70d94aab304f6b6eb3925b40c7730ecce514d161aa. 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/QZNWP2350438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252c4b3775574f8c180e1ac7a5cc0ba86b038f88a07f7c12c411560244167870. 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/QM6MZ2100449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1c3a010bd102bbf74983166144baa3feb925f3512416618190564fd048e342. 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/QMFME2133490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce484726e2a86d057195d9fb03be8a3d490961b5b45f1bd30cd2357335a30e5b. 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/QM7282158205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d11c4db5b89e3af0dee5b8e830b70ca745a8a59db9cc62240cdf6e9cc6efc6. 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/QM6N22175253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916a2290c74cb527f4ed9729ad376aa4a8e59e4f28a9ea84bbb0809fb087b1f2. 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/QMFME2133491.
almost everything i've ever wanted to say (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a399e0ad724860a50b027f6c5cddeb651b199809fe4f11c3725c0cdd6c7080. 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/QZHNA2168015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1af878b24d8170132d8bd2689cb56face36c27f5d9f91a39db6441918f6b010. 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/QZES72191144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dd2ffe6eac26b4951fba9a7b4cec91419f9f6924fb77476ed0fbf0ec042e10. 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/QZNWV2054214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485b4fc994c17ef74436f0572bc63eb990edbcce33a19f7e62634efb044bafbe. 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/QZFZ22169062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71343892e9f9e6a3420c16c784a4847453c9a3e279a306ff9227f4bcdc122f9. 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/QZHNA2168016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3237f210e0c1b3f0e6f657ce505f2532a18aca3859915747f47b858069d23adc. 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/QZTB92271646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9da2ca9951e9e86d9daa889af29bcbb62456875377e5c1e2c03020ced81134. 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/QZTB92269189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1826f63a0af37537897ce1117097caa662e0c44c9759ffa28cec275a2ed39c32. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZTB92273979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fe21c59a6732c54b7d9f915e5af1ce536be08dcabadab99e71511ce9c19ae1. 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/QZFYY2305168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acebccd123c0478293d966c0f3d742a0319470a1cb827ce91e85d83d2f1bbb9. 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/QM24S2101943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201018ba350a4309783a0a866ab4797b10c9bfd8056b95c82994410513d5602e. 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/QZES82323931.