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 0xf3ae13ee5d24cc35cb36a84421a2ef9e17eb9d63bd38ebb5c0fd97323ef8a149. 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/dc037f5a-52b3-4f0e-b9e2-68f38c31352c.json and https://artists.proofprofile.net/proofs/artist/dc037f5a-52b3-4f0e-b9e2-68f38c31352c.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 0x860044417305a4a2d3b6e0bb2305385919dcad18ae1c409cc7af8842b907804e. 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/CH6542172772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53573b1f687287292d5dcf882b205f6abbc6308439b93d246949ed665cd60e65. 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/CH6542172773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133a5e61278269ae5dae77fed346651ea3bd8b3956d873864e1d605baf491a7a. 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/CH6542157137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1420a6a085e5d22819d2885c7e1afca8b691943dec36030f730665b60db965a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CH6542172774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef4099129b28b46abef52c7ab1dd908d6f3c9158941493fe9af226855dc944c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH6542172775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406cd31cecf64fc5a2aa2b27e8ca2301cdb703204feebb48942bc6f87a9ed361. 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/CH6542172776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a0e180bd896859f9c2c670c4372c2d0050d537484c5d20c2185d2e00d86b96. 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/CH6542229919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133a5e61278269ae5dae77fed346651ea3bd8b3956d873864e1d605baf491a7a. 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/CH6542157137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc49d6543191bffb2f027d2a27b2bafe7bc6e6a8c326f39bca1c2134b6c5dacf. 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/CH6541629798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc855ecc0c235be04ccf31aa362163613b8d4d07739555ccaed289be94978a3df. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH6541629799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa618da6dda3498461cc0a04e481029b030096c4ff3d69adc3a37400da29b3cc3. 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/CH6541629800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768a080f53d5d9f74eed24ab919b952244d12099138b5a7cfed22194ab756653. 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/CH6541629801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dcbdf4e62778b6162e68015e460291a22c79d420becae441eaa992328e5998. 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/CH6541629802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafc074837eba6bf7e19f06164d52bf8e96a81a815abc9188ba81fbf816aefbc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UK8SW7000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0183a18fa30a0f0397064b440f40d8fe5e571e2228f570e307e455cea6100c. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/UKEZQ1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca444dcfc4720024be00482ae6efc81eacc44e8922c34f68edf30752439ce6f. 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/QZ4JJ1675986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d9b07516015e857cb609cec075548f17fdaad4cf81272689ed399c424b7852. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:21:33Z), 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/GBSWL1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7162a37cf94324d50271fde3dbd0cfdec6440649e6e4b1b10c4dfc35ea3c6a1e. 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/NORDX1701020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c971f8cfd1c0fc15c37ee33839ceeb091d87035d8c5c8348fff09dd87b5315. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBKQU1740826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672bc0f9c1286458345091fdcec60a0a608a83ea32582846234717f9b694f0c5. 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/GBSWL1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904063c39fd543f2eb50eda4e977bba0b382aeb0175106c75a3e8e023966be2c. 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/GBKQU1740827.
Sessions II - Untitled Track 1 - Balearic Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe94e1ed1620ea0d3fafa3841ea08c80d6a31328d5864018549911f6d8991afd. 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/GBKQU1740828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb800bfb96f9e84f8edd8deb7f6a00f78079fc21a636dbe7e85c9b5ab02232adc. 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/CH6542359946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1676e8815e046f0770ba815b1e8a26ddb31a3113e3e4ed6adc33492a73e5dc2e. 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/UKU932481967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0458b55430ff3f9c0310f37d24fdb2a6571dfe537cad659b3e2c89cea48eee7. 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/CH6541831688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecd61a9918d06d891a3325c1bfa0629b52c77ed58f7c53085044a0d5f5519b9. 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/CH6541831692.
Aeroplane + Fuga Ronto & Chris Coco Remixes