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 0xab2eea1b4ae036072ef9e94d5e2a1eb9f212538454b0814872420224488c7169. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0df7779-86da-41bd-a6e7-e8fcd3a2f722.json and https://artists.proofprofile.net/proofs/artist/b0df7779-86da-41bd-a6e7-e8fcd3a2f722.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Midna's Lament (From "The Legend of Zelda Twilight Princess")
Beginning 2 (From "Minecraft Volume Beta")
Solitude (From "The Elder Scrolls V Skyrim")
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 0xa52d36b030584bcd2d1154dfc975201db3a4bcffdbc69e22fbb5ba82fcfdcdf1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZGWX2152788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a502cb17921130fff5a6fb455e06ed77b6756130e6b3190204d8419e47f68e1. 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/QZGWX2132054.
The Legend of Ashitaka (From "Princess Mononoke") [Cello]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57db061706e93241277cd2c810da488d8936ce2e3f260b2ae0cc9941d32b4ff0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGWX2177324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621aef44cdaedbfe2dd97b5a763744b25a5f68018163087472661ee057740f05. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USLZJ2155498.
How Far I'll Go (from "Vaiana / Moana") [cello]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9033f574ab4eff2898c3bc9e17e0fb4e0ff26262bd30723340e47394804ad7. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GBRKQ2121290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a834969141b890c15810f598be2ba1b1e303029d48b81bb5120da9f82057404. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZGWX2248114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9aef95a95a3c853b1559d7bd1569a0496e9aa9f7772fda160404e0873d503ca. 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/GBWUL2146290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9263d2c9c90306dc6ed3ba015b6e7288b2c252bd9e2a1db33adc1a9c7c0585. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPJ32126908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca52baef2f5b004167457930c52c20b59eef8d40ed69d13483e590e166a9382. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPJ32126911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b47cccac59ad2ecc95b15d09b0caacafab972c1b6b0fdcdf29406b4c2af854. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32126912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec4bbc069b725fc6f8d7c2618751889bd5de4a82dc14701e285c25432307257. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:24:46Z), 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/QZPJ32126913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325c2c7532f4bb66567fab2e80299004da0dae41906938d50a5942d92ecf5848. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZPJ32126914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4bf57c8839b6a32749ac3c3cf324eaad212cd6b3e007f5b6f4c8c4c9f9fdac. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZPJ32136531.
Circle of Life (from "The Lion King") [Cello]
Colors of the Wind (from "Pocahontas") [Cello]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61405318aed39f2fc03d9fe301eef89085541e007286a9a39dd97bc1970ee24d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBWUL2221108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4ddba375f7a326b82e737ef14bbbfb9f6bda92d85a3e5a8395be82cffe7772. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBWUL2221107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9d4da18febc730e22b4b876c688ed7d920c50972e6092c5474164db2f935c0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZGWX2140745.
The Legend of Ashitaka (From "Princess Mononoke") - Cello
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6b678e9b51d0565124c6ded2780bf6dafa4f63b68ebf6fae594e438ebff5bd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZGWX2171221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52d36b030584bcd2d1154dfc975201db3a4bcffdbc69e22fbb5ba82fcfdcdf1. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZGWX2152788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca3644b00a23ef8da6f341300b56ea11c565a8f500462a2c32ecfd3536710e2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUMEV2284662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621f3b36a0e5435690c40bd509fea5ecda04ed01774228710f9a8b8b59f3a0b5. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:53:37Z), 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/AUMEV2284663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61657260f79ddb89981092d916f177478efae8fb341bbcc567f441e596f26f36. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUMEV2284664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521accdf059713dbfb2638c48615edc3eab2aaf830ad3e9d84a94cb31a69ce46. 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/AUMEV2284667.
Circle of Life (from "The Lion King") - Cello
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c4d5e0ebcfbb4f7d25d16382761a305bc966d2f75d4d782539c1a21cf1bfc5. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZPJ32186171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc53fbc9e84245d70598af39e936ffea7751e0c9f72952a78acf4c2c9f49947b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZPJ32131130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eec042381e3563ab9d83815962211e04570cdc382fcaef7158324f83dfad904. 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/AUGBT2442293.