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 0xc0ed130c6d94db9db1ce508efa927e9877e3ae69729b02547e7f1ceeb57fd3ef. 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/8578af3f-2d83-4726-9028-e97bfb27e2c8.json and https://artists.proofprofile.net/proofs/artist/8578af3f-2d83-4726-9028-e97bfb27e2c8.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 0xb6451c24204137270578dbed39c64fd27b5e0129177a90688339300823c48ac8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IL6652002023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17aad8fc42f00c5377b1a9ad4bfdd2a860c698f23bb498de51c4579e1d8b7988. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IL6652002243.
Miss You Missing Me - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0227cfcb51e1f46c9e6d87487e9ee4b3693d61a75cbcdc67350b0351eb1b957e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/IL6652002260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5accd303d7f8c5db56f4be0f40ef65f41db807babdc074d2bc49d1c7f72dd4ca. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/IL6652103157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afc65dcecbff87a3b93f4752f5f8295156c00c6dcba3713c5ea9e52bf672305. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/IL6652204363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7ef524ac8c3446e406f712937bcfec9f68ffa65fe53b6e443dbddc555e5560. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IL6652204367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25ed876eeb5b95023565f5880615450a73d7cee9d33bec9583c5a2c1f9ec5bc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IL6652204364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e06941905653bc64dbb6634eedc54e1e587fead150980891c02ee4d56bce760. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IL6652205176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58b6b11ce50922c5734a59341d9de73e3eac5a99746284ee0c267a6fc5cab0c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IL6652205356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07718e24aa63397254d9fefa533ea785203c1ffc2d2a5b540c471252f078cb80. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IL6652305710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0863efa712876ef98f614a72e9a61fc6121975835008186f2dda007333e5dea. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IL6652305711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c45e3fd69afd6297ad4281fe2463e90b64adc0e0247aeaa0be8dd696d2f3765. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/IL6652409009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697f028258232ca239b968eb01f6e3d1b9a4c49e44e87a27c83e3058614cd401. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/IL6652409552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77c951a850212c2de2d44cabaf39beb05ba07a1f7fe979afb96b2568371e8db. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IL6652409549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e957eb69f639a2438d32aaec9addf4de3525018c2c4098f2188f71e2b5507b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IL6652409546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85843375422f2cd48eb994613ef5d121ba4cd314f43c91db58aac393bb98992d. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/IL6652511886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9810895bfdb53ced536439798112f9c89d621f5e04641ca3b1ddb3de3524263. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IL6652511891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719562a18c34de0c4a24fd176d2667e2a0df412c82b69ffd5b90e0be7c910826. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/IL6652513352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb053ed90cb75c086455e755da4e084f20486af23f181a85db95ad7b94bebaf48. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IL6652513353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d86e5b33e9ec143ba779b1695c0b386c6d9065dbdbdde3e7f63a9232c25891. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IL6652513404.
Speedlist - Artlist Slowed & Reverb Songs Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98ccb390399917a50ee19b9d30b2fdf0c0c76fb788bfb7f96b918f87a7e6dd8. 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/IL6652306724.