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 0xd274cc804b4ac1e8fce3b4db358d5188b41a9312f21c92251be0fbcee7c5509b. 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/fbc04465-3923-464f-8b2a-0491d9e9eca3.json and https://artists.proofprofile.net/proofs/artist/fbc04465-3923-464f-8b2a-0491d9e9eca3.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 0x0713f76eccf8820e8bad191e9243b5d9b8f05130de14b5819ce3b4890a71c72c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:54:01Z), 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/GBKQU1695806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4323f6e2c5528e3b9265f56009a350e1209be2985c1d120aff9a9e852fcb7cfa. 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/DKD211600102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ed4145e28bcc545649ad4cb3508ef6e3349fd1b8fc42c9a3c6ee00a5db42b8. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/NLF711800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98702cc2165c85e1352502ba1c1e51c28c580fc7e79a6ede81f2c933cc3bdb65. 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/NLHR22000482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c043385815b12eeeda6afcdabb17945122146ee5f9b2f86303e9e068137b2f8. 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/GBKQU2161644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0663d1d39533ade88bcb196d045b4a7b9d083cc67e1746b093e9f282ff49f8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2230375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd718a0ec5bbe59954dcf946fed8116a9438159c01eace0de532fc8eaca73b095. 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/NLUW22201756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca32052d2dc7fd0686a079af661be7a38fc70341583c92a609af8be434140b9d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:10:08Z), 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/QZHN32347753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8762cec73d10d8bfa9f75081679f4f71e693932c2cd01704a68565b4f5744f. 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/QM4TX2374955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dda5b0f94bbffaac0f74e799d7c5a8c6092afe7bba93a03bb1600d36f1844d2. 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/GBLV62308696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bb53ab538396354fd75f83b7019b809b5dbad94f2c6c486419dede87193686. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZTAX2533139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0211121f4f985ae883434c65daab8174dbd9a8697af47bf8fb30504a632765e6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:06:03Z), 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/QZWFS2560592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889fe065a652a445127938a3958980cfa4322b572e44844e5ee9e2f1275612ed. 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/DKUM71700217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2e3e54cfe7c1da049b336901b8120d3e3cb9dea412f027a0213e9edf1ed4fd. 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/NLYK92100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857a21ae9327d08bb67671382911983609dd92e203b53695d38ad11d6c17b4d4. 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/NLF711801296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a68d9909b4912501e6af852411680d7e73d330ab994f15f773435da4289972. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:28:08Z), 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/NLZ542101572.
No Sleep - Sonny Bass & Jordi Rivera Remix
No Sleep (Sonny Bass & Jordi Rivera Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ff6cfc74174f0c55453420ebc42911552a1e664a4f2708273d6b0b07cc1839. 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/GB2LD1700262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021689dd07235501860b3e7fa1fe6976aa074e67010cb7b79ccb0e5bfe44f01d. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/NLF711810220.
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 0xce870c93beff01f592fa846ac9633ae2a40c57facbcba17c6cdd2eab06badd7d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLF711801297.