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 0x1747e0a2a05599e893bd3648c1c89aae9e3b462b774d18554324ca8786babcbc. 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/012f6327-504e-42c3-973d-a9ea13e7dac7.json and https://artists.proofprofile.net/proofs/artist/012f6327-504e-42c3-973d-a9ea13e7dac7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Laments And Lullabies - Light And Dark Vocals
The Music of She-Ra and the Princesses of Power
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 0x53931e9e52d8cc42a2fd90acfb3708b7094ca3598e7ba020c1332cffbd5a53b2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:53:00Z), 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/USQ4E2005558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f45676367af92f02f1dbc8b790a0967d3fd33311ae7ff6aef7b8e8a134ae661. 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/USQ4E2005559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9530917e1cbd62e87697e53a539bf640bcd822d46d23b61479bb317c021260. 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/USQ4E2005560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a05eb4fa52c64324964eaa3ed07d464c2bb8631e3566e33710cf2d3e47746b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USQ4E2005561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d43e63fc7875102be4fbc3a1acecbb79770df809663b6b487137f89ee28034. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USQ4E2005563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a32950c29371998e1804e19119719316920926841d2d03cf9e57fe193797fb. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USQ4E2005564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af5c886b716b61fb8f34ecf9d935e6fe06013afe7c03b66468b94936a30361c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USQ4E2005565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60ce31da52a06f5ca5217ca534e1c53eaedded5dffc3153eb0faf2d33892f61. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USQ4E2005566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53558a0c7a6940105530ec23d096879cc14d1fc79965fdb471a7c56852f483d4. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USQ4E2005567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7a54ac77ef62e10c12bf0caf789ae3738267cbf0110d243af19945a94d6a78. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USQ4E2005569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea171423ba8e028b1a91ea50411f2f1e6ac15e9ce25b2773ccdfc7a5e3f0bcf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USQ4E2005570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebddd48d5b0d266282b0b9b9be69d7860c367109e30c9e021760fd4c8acc83fe. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USQ4E2005571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6912564c903b240d48eb0572df70b69ce186948126ab1985ef9798b3e8775d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USQ4E2005572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258886ec00e2740ff9682672779997626f41c6145e126d2b3882380406e7ce7a. 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/USQ4E2005573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435aa3e52e4f5746c662eed7c8966c3f89f4b95acfae847ce1c19cf441c63356. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:59Z), 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/USQ4E2005574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb89ca729a1784f2bc77ca09fba18fc888643a547af290e129eab346b6c8c82. 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/USQ4E2005575.
De Vuurlinie (Original Motion Picture Soundtrack)