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 0xd2d78596f3b4c672b55455d596b07f997462c9872d373ed649312c71bb733c5d. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1dcdd63b-0089-441a-aa72-2f57516bb927.json and https://artists.proofprofile.net/proofs/artist/1dcdd63b-0089-441a-aa72-2f57516bb927.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Indiana Jones and the Temple of Doom: Anything Goes
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 0x7360360593e2f77e4c3e3a1e95a922eda75391ac42bd0c7af3415d4d28d42796. 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/DEU901502396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c72dbbd8920b3028ee5f7d4e85f9911f5e803bd8f326f0888d2e74831fdcf9b. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DEU901502400.
The Adventures of Tin Tin: Air de Bijoux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3b3bb694d67da5786990fa55730eb92f2c6bbb12faaf92156b356dc3a6394d. 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/DEU901502401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e7bfafa83b7c56a5e7e1bef732c55393c7721a86440f379acb2454188d5f11. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEU901502402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9d8570a1f2a97f2c418e759d4c57adcd1e3b9e4627a226076b6ce941a85a6b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEU901502404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a413e1642d240604aed79c4f642c10a5c53f7a1231c332298687ced3154064. 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/DEU901502405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1650de66910f0c1883fdd6cab37af4353b756bde787ca2f52563683f67adc8c1. 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/DEU901502408.
Fantasymphony II – A Concert of Fire and Magic (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5661e5dc97377de84c5b13f13f53d204984f7c7ac01316e25f248715a1c0072f. 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/DEU901502207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85eb48caa4bca8ee2466d6ebadda1bfb90b729bbdc184c0788a0ec3cda65024. 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/DEU901502209.
Warriors (from “League of Legends”) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0e99e5a60290b32712bc47485083f6bd4bf76e4860413536f703eff78118d3. 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/DEU901502210.
Dragonborn (from “The Elder Scrolls V. : Skyrim”) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612391c2359bd3b86ddb58d1143b36fc40de35e752f455cc7d412ac72762819f. 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/DEU901502211.
Elden Ring & Malenia, Blade of Miquella (from “Elden Ring”) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee551137c03d145109ccb6a61b4ffc9a08c194251cdc14dc9bfc10173e2796cb. 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/DEU901502212.
Double Trouble (from “Harry Potter and The Prisoner of Azkaban”) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368d51eabb28009af31f4bc4f2faa1aaa5055fd338c26850ffac615d3506b7d8. 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/DEU901502213.
Fantastic Beasts And Where To Find Them – Suite - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae60b83408451008bccacf8c149b94110018d0d9b401f74e0aca9d1f448d5d8e. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/DEU901502215.
Breath of Life (from “Snow White & The Huntsman”) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d199c7f5319e5c7a7c765b1f45b5bf6a57809ad4c9c80ac3cd087b4af5a3b0c. 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/DEU901502216.
Jenny of Oldstone & Main Title (from “Game of Thrones”) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ae200daa76f460b909672f1a53310b8301d0a9d305d2cad748a8be10292446. 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/DEU901502217.
What Could Have Been (from “Arcane: League of Legends”) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd152f7a5f05190afe8412fd39a8b6a002dad6526a0bcadb7fe73d9a38b74b811. 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/DEU901502218.
Scholastic Sanctuary & His Dark Materials (from “His Dark Materials”) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe9b5780695852ae526287d0e40eae79e7106de12c69bd8422495902a0eee9f. 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/DEU901502220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7169473839072b22cfd65292f11d27a13419f3181fb9c88d8069ea347f44b54b. 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/DEU901503545.
Breath of Life (from “Snow White & The Huntsman”) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d199c7f5319e5c7a7c765b1f45b5bf6a57809ad4c9c80ac3cd087b4af5a3b0c. 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/DEU901502216.