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 0xb6159c1e70abe4bd7b123b7f5393d62eefee650e1e41089def7a6ab3b6f5469e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c96a513d-c5e9-4c53-bafa-da87d878d630.json and https://artists.proofprofile.net/proofs/artist/c96a513d-c5e9-4c53-bafa-da87d878d630.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 0xd858c17919d0c2321cccb7e0fb24e231a57ba0e077f03362346897132838802f. 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/GBLGL0807650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b27324e34238b92e7fa93b5a45f904ac46fcda3131808358eab62b5fed3e3b5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLGL0807653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b68b6f28d671583596e3514af9a6769e50eb8f3f05296d6dee8b6a33585b29. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBLGL0807671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3e6f1b880d2eaf6096a582a4030e47954bde5779d43994b9825e137ad32c02. 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/GBLGL0807656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955db3ea2134afe7ef216644dd8a3ad237bc5bcad7391122ead688f98560ad53. 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/GBLGL0807657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f07a79f02610949a3e71c2cd969dc4d409b98fd74a670d2fb564ed8c028d925. 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/GBLGL0807665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3398192e7d705e0e0d3f10d802a348a158224894b058805db75a1341398636e2. 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/GBLGL0807683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1e1b058ad7c1d573a18a13bc8bf3c2816b7c3f2c683a7d18fa5f201cfd6061. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBLGL0807658.
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 0x7c87c49a43811614b57a88496f691f9028ee4b308b4a83aafa13ad78b4889efa. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBLGL0807664.
The Classic Songs From The Movies Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f65ea11d28a7fe1c1e80f20f028dcf48620984ecfe673cf9efb466c86442fe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLGL0807953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1b09cdfc43502bef5fb2477fde682f1211b48249f7de2106ecff8857be438b. 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/GBLGL0807954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97ce51fe93066f8b7116de6cd4c3899822ab45ad4507f6fcdf2cda09e13ed73. 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/GBLGL0807972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de67b10ee899f2a20be46abc9263a55c55d3413ef09d1de61967ac8a1d133da. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:22:10Z), 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/GBLGL0807955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf734bd50701c37f3f262d0ebfdb408c97c037bf60d3460f686338c323060e23. 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/GBLGL0807973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0de2df820347710e6920be865d3f22c7567b32c6809e1cd5a69d11fe00bf0d. 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/GBLGL0807974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40fa5f08afea6163c76425f9ff0b6a3b54b2ad1c36561582bbec5c16d5b1d3d. 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/GBLGL0807975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511ab4552a924414de2b72ad9ac1e38279e5ad9775c40825d8f557b8addd7997. 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/GBLGL0807959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e77c5a7c0c89f26c65abc4d23bcb04c6e82c085f1a2cc41fdf9bf6695a8d5fa. 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/GBLGL0807980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6f3dd16aaaa15858f0372106a9e79dd4266d235899bde273713103043520dd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLGL0807982.
Speak Softly Love (Theme From 'The Godfather')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657ca144349e970e9d0e5a369efd8363c4092676e11f620dca5f033a8a0bb0bf. 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/GBLGL0807965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112c3b023d0bed37e45782b131809bcf52fa6fbbae55d8fd540aa518c4d30588. 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/GBLGL0807983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c201daeb339a985a897d2e4ffd9e100d3526a62b2d1922f695f836bc4d84a06. 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/GBLGL0807984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8173eb9025e1a18a954c1d6498848d8d099a9640b44de253962da51183dd4bed. 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/GBLGL0807967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6fe232be3303ffd3e0c59be0912bf371e8e149113e7b0f33f4ba55a3f0fcd8. 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/GBLGL0807985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880e648adc09e096c1e8ba0b96b18bf7907bd5027ee369875a529f545c763c26. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBLGL0807978.