Bronze Nazareth (born Justin Dante Cross; December 8, 1979 in Grand Rapids, Michigan) is an American rapper and record producer associated with the Wu-Tang Clan. He has a solo career as an emcee and i
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 0xa325d30b892b31e06388c8921ace116e31bf16de50acfd020a0cc29f1a2e26b1. 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/59429c78-92fd-4a62-9a09-121a5c19c914.json and https://artists.proofprofile.net/proofs/artist/59429c78-92fd-4a62-9a09-121a5c19c914.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 0x47efbb21d1f3fb6818071e3c7c1236f19335be9d7e15bb4a39b2ed2358f8056a. 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/US36T0600805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712a182ab37eec5dd51a3fc58c7bd4a6f5d238dcef1786b7cee7cdb35916ccfb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USA370910954.
Fresh From The Morgue (feat. RZA of Wu-Tang Clan) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc26f5bd7f4e54f1020ffddc8e9d873c6d660e3f3befd9a2a4abd0714e658f9d. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:10:56Z), 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/US7SR1100003.
Time Flys, Life Dies... Phoenix Rise (Deluxe Version)
Time Flys, Life Dies... Phoenix Rise (Instrumentals)
Time Flys, Life Dies... Phoenix Rise (Super Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bace6202e3a8e38d714f82183e33ee9f2c52a8a5f6690caa5cdd71fe8de9df3. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GBVW22100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d087ecef01ce4b18be685b83f460ae85e2252ee4f0555e56119bee2e3b0d54. 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/GBVW22100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bb91d0a91a88528cd0798c3234060e91e0e127193596817863fd00258aa77f. 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/GBVW22100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92625e81bed6936523f413ccb6dab522fbd5b8ff882c1c6a368d0093892d2221. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBVW22100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe462944262f200f8bdb44cd6a42e537ae808ff95b5c312e606e1e9581d4babda. 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/QM4TW2183697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15517522dfaf8fff0bab4487f1038cfafb204f2cd5ca578c97b282102127242. 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/QM4TW2183703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ac43f6386375a43e351105960e88ae1b205dcf109f190b47fce74971eacf73. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:47:55Z), 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/QZANY1700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ad8d9fac05161b12835df7bd4aba7a5893f12e32b03b3b8dc17c627ba69470. 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/QZANY1700166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e80cd472d986903468767598236a9fc2c06066bdce56b12ff9418efd4e25638. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZANY1700168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084ad26938039ef18a662400aef3d998e1cdb23c416dca52a29e16f96e2fab62. 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/QZANY1700169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6177f0ab618623a0947f9ddb05e0da05c5b99f53f08426f0ca53ae41d816c264. 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/QZANY1700170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2f4eb3f656a49bf65869320fc54de438daf3568a5279ca680bae36094530fa. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZANY1700171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903fc2e30077fd576724df5adc59ee78ce4f4bf7bb3bb254482d18f1e835322b. 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/QZANY1700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715f24e450fdc150650ff319d23b91b8347804fe10b72f1839e1d5edee9201de. 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/QZANY1700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217b17cdee8cc366527a96f727901e95d5d5e8cc81994d437515c7f0f793dada. 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/QZANY1700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21acb69f8a13b5fa9931fc736243f91f09efcdad512abf5b50ee50772cb42253. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZANY1700193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec99ecf16eb5f44892d5c5db70ea9bf55d341e7e500c3616285f96d3547e64e. 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/QZANY1700194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916a39b3a04671ad586850208d54e6c79810f1ffbc9055480e2e7db26ce3373b. 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/QZANY1700197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475c0b6c1471240101ed83c1f6a764ae0609b770ec107706c3b2c813758767f8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZANY1700198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c2830da30be191e20bbd0421afa5355e8c4fefa9283cc36bbac2f824277c30. 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/QZANY1700199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff439c36e8a085e704bad208ac64de9b0f187845b82dbeaf843df9e8b6508a8. 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/QZANY1700200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647f2847adff00a23e3edbbe546a462c57c32693c160cabfe43545c127abf98a. 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/QZANY1700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf004f42a6e5243030c3747313322c3ceff8a4d4e529a94bb461af4d7a8d55a9. 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/QZANY1700221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113bfca54d9c24823c3b03aaddc3a92a97bd8c96b321d31ebaca70e95ba165d2. 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/QZANY1700222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9133fed284cf19c2511959e5112e396c5dc5c651340a063296438b47b87e1248. 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/QZANY1700239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284abf870e7b6dd162247e88f3053ae8257994bff288b0bf353266f0b6021294. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZANY1700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea3ba991a4ff84162a366520c31f01993d1682a9c9bc6cc5dd07ff3ce9ed828. 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/QZANY1700246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1edc972f13e1a42b5f12c38a398668674033e4af49d1b4e85c00016c3fa9527. 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/QZANY1700263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50da6add5412d2458b20619d7b3cf80aa56f33c0876d69fd3ba00f588a893f8. 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/QZANY1700273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf760e4770c557187d2f52d140d87f5ec11181ce78d7fe576416c58fee43fac0e. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZANY1700277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f1ef439ca19b227c6c2b09b0cda7ff9cdc654e5c13b3d9af7c8a97601831d2. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZANY1700287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aad9a29c0047e1c33abc955e739f49719974a96707211ce8b400310b54c7300. 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/QZANY1700278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bca4902dc7eb82a01c8696e83fe4569a097c7ee8fbe2d87ded4d85d019aa5c7. 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/QZANY1700279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5545c06166cf66e77a7352a1b88c81a733bedfdf1a60aa913800d880ee42193. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:57:51Z), 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/QZANY1700282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fce1c4b0e124ac2f6a78d8fbcf124d24810deb02519938a8f3275196fe151c. 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/USA560802795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d58023da988b22582c5d2af960a7eb8cdde44623f8588423038fec6f8b7ffdf. 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/DEZC62146174.
Assassin's Creed (feat. Tech N9ne, Royce Da 5'9", Token, Chino XL, Planet Asia, PASSIONATE MC & Bronze Nazareth) (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8e6fd224d0618f3f86f1323ec699a76f15047c079a5e022754dbf189c39bae. 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/USZEG1800366.
Vendetta (feat. Ras Kass, Planet Asia, Chuck D & Bronze Nazareth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe55c5f675f9418f1737b9c3539696b3ae4dd7ab4797d9e2f8a26ec0477cbcb. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USZEG1800007.
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 0x02907ca72abdc921d13f53b1ed63e21a42c295617d8b92d158ae5e4ff2eae4df. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QM6P41942124.