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 0x83445a5fbc928acf639a76191082acc5bda62c29202af83a09ec4c3c47e3a7a6. 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/5c117759-6b25-4615-8b60-9459ebdb503f.json and https://artists.proofprofile.net/proofs/artist/5c117759-6b25-4615-8b60-9459ebdb503f.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 0x9ac7085896f876c3eff88847a5fc6558903ea8bcc5c983c82f8c87849ce96dc0. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/FR9W11101315.
Thou Shalt Not Kill - Scratch by Zé Mateo - Chinese Man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d8826f08bfc959e589246b0ec72322d861b5c1741931d9b6c3ed21704f74c7. 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/FR9W11101316.
Ranjia - Scratch by Zé Mateo - Chinese Man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee343fb63ad74c0acec81eae1e6533721014fe906eaa71b0afdd88734b13019. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/FR9W11101317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f7b1f46160b421c2b48ea6e6eea09ff3852ba4a18332ccc5558bb4a40ad6f4. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR9W11101321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf095c4be01b8033d1a3a096be3d45c32042a775e0a7c2f3613a6830f0efe6a5. 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/FR9W11101322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75272c697ecb83ab72c7080150ff05796b1502c65a63441d4e15dde770f20d2. 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/FR9W11101323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6ed7dff7feed2ae3b07fe7bde19c70348a8b98b81b3dc4e9bf2ae235d7400f. 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/FR9W11101326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c47900a4a6a545c7924664d8892c6c7d970e4639ca3581c7103aa8d8435ff46. 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/FR9W11105841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fa4b42da8e9ea84157b17599dd5d7ba4faf06b8fcb6281f2fec828636b7719. 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/FR9W11105842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd63e5d63285a269c07544ac538e77ebd237c641b237c0d295f634eedd4255f. 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/FR9W11105843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b71c70cd10f5686fed77f80c5ee0e39eb136bd1b60bc72ae5514b9ceed8ca4e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/FR9W11213279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3232a11ce756c665d13d769dc289214a943a27d002245726bfd8b0ee053dc3c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/FR9W11401490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368ee99de7eb141042820d5b8863a8ab27f156423d669bd8d23ae72f80171e7f. 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/FR9W11401491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1f309a50b76c086ad01013ca5f4c6434743019ae2c6e476e8a9e1b41446de4. 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/FR9W11401492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52014406bbf0140ea00da3ff1186f33c022eb281213e309ad1ffb7ac436cab28. 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/FR9W11401496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6e8d9e3c366291f33d02da40e7a05a87463448e0c00cc95e1f02d888002607. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR9W11401497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb7126372468e1b18590e73cdc7d5a1318116054995bdbeefdf13c05b3a170b. 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/FR9W11401498.
The Seven Seas (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
The Seven Seas - Inspired by 'The Outlaw Ocean' a Book by Ian Urbina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fa503badfa3943980df46e9f3f03d34c827fc16b3ae5e4d0b1a3796e040232. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/FR9W12327628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99a9680dd4b0382ac44edfbe575bf9421ae17f02d507a432c1bb4227244ad92. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/FR9W12327630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8952d25f4683eda515613460d2e85d276b6308d11f733e1c41eb78edfc4e8d. 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/FR9W12019375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447e7600a26f5c37b2aceaeca591406afbeefe7532c20afc0e439f60d82a8345. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/FR9W12123462.
Entering the Black Hole - Live at Blind Istanbul, 2022-03-26
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff6faacebf6e6156d269704732a5e5c63c38f9f319aef03c61330a05bd1ee67. 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/FR9W12427735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707c32eb20bc401035595ea031753af44b9fc71f7c443bb4749c7008b4b125a2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR9W12427736.
Sure the Sun Will Rise - Live at Pulzart Festival, 2022-10-14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7906555c9585eb6e91a0782d038544e73252ac5d178fd185dfff27c1edd379e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR9W12427737.
The Eye - Live at Le Gorille, 2022-12-16
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xececf883b6ac8fe041a45eb34989308cbc08b6c11248b6365b81c2d2473b3c7d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR9W12427738.
One More Step - Live at Pulzart Festival, 2022-10-14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f72300c548199954a46834ca4b4c47232a3bffa7159716592b09f65303ee36. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FR9W12427739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8a81d18a0d66217c102182a729dde09479c2d543bd833ffb2d84422932e84b. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/FR9W12526338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1594714f9e993704b9ff84ab3a08ad3772b38ceb21dccd347868010ef6883989. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/FR9W12526339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c89002deb88c0b066710b6245655394f82e155bd606d45d9243739f0c2be59. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR9W12526340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d8967627ae3b1d85b02cc0e2aba486e0f1b12d73723cfa04df41c8a55a80f6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FR9W12526341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a86be41cf416269819748094958ca4453273f4a652a98a6eea534dd5fa623b. 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/FR2R02100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6fcf5b0b6f505848d657c6b22ffc03bf937f13bc3cc2523221fd1f72fbaedd. 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/GBKQU1784067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4acaafdc66e750b9ec085c0d54985e924bbe16ab333315647a5eb695e1887cc. 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/BEKT52200160.
March of the Dead Things (feat. Teenburger) - Hugo Kant Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d4456ae2b5789140350a1d1ab03eae769b3e1aef7afe8fe275a3ef63d6b5d6. 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/GBGH91200035.