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 0x6a010b0230cb8ad8d931c3c7964654b62fc9f84884d8a22af6e171ab278fea08. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/910d91ee-322c-4c74-8faa-bd082fe46fc3.json and https://artists.proofprofile.net/proofs/artist/910d91ee-322c-4c74-8faa-bd082fe46fc3.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 0xbc2f6ba00a2ce73fd7c8b6d873661e7ea9f41c2336dbbc0bb7b1707c8bfedaec. 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/HUMAG2200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27f67fff30f4bb7bd3b7cac474b26e535d66f42f1f90d326b2c584abe699977. 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/HUMAG2200364.
Hazafelé az út veszélyes - Náksi x Erik Ray Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd217b1cf6d44824d8f4107b7dfc799b299a481419a45b15e72a108cdc8362892. 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/HUMAG2200314.
Más a világ - Markanera Rework Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c07a251f4057e3273ef089f6ddc5814f36b12b6680f44d583c176739d64fcf. 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/HUA612403193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56493ff71bd3a4ccd465f9b485177a64b5f2c6c2d14e7bd8ac9ff657704033d. 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/CA5KR2475125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac2622349d95367543a330292d70361d00cc68aed3e6929e4c200e33f167093. 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/HUA612400637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c12a61d125d849736f2be0383861995316aa59f1f6700765e0dcb162557749. 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/HUA612301493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db54b5b637633ecf030cae52063529a08713e7c7f2f01a25e895be582590b5c. 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/HUA612301494.
Rég várok valakire (Dr Skull Hardstyle Mix)
Rég várok valakire - Dr Skull Hardstyle Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f5477754293cc17e37396d404a5eea0354740336b2954a3599018bb456447b. 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/HUA612202154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3ed642d47c68c93236c926ddfd2a0c128741d0bf327130e1804f798dab12d5. 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/HUB502200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7d2681fbc2d248d38cc8ec5ed7cc9bbeb2eaba870d0b7f34ac9de329e30657. 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/HUA612100198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a6d7e9213895c339d719aa5a46e7c185ce574f93de89d42eee2474b7a0a3cf. 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/HUA612100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0784717138cc458e68c8112cee33d9bbac06ee91095f948b9c0ccca0b404a81e. 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/HUA612022452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8920996ed833a6da4cb0fcd9749746ee4876f9edfe41f9faecc959cde56851e0. 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/HUA611900639.
Valami Véget Ért (Zareh Kan & Sunshine State Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592b411552b1b88ea1811d984421e6986523a86fcaeae6eea9926390701d17f4. 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/HUA612201828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8137cfa6b6bd25f2651aeaf16e61352db722030aa65065ddd0b122ec39f306. 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/HUA612100418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03279fe0a8515f9ec95ed79a0996728435ee6d303fafb18b6d2e155541c43d1a. 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/HUA612201829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf243c4ed4bb912902f37e4d31d1e1e507676ec077e01bacb2454e0e7c89d3b2c. 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/HUA612201830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca073240108dfc22de1bf348eee3396841b0295fb8bc8b944525d3e398d3bdf8. 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/HUA612201838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5e74c3ed4a6592abfc9e1803da06dc0f6b0a1de43c8593309a469fda7b6d39. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/HUA612201831.
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 0x77e32cb7c3b166b3fe4ca16ddc4bc2914064adb9440363c7d61a5266a106ee5c. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/HUA612201832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f88fd12cb67656d790f10380bb2a767b0127f95470d443ec486bdf0b0f819c. 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/HUA612201833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb35ad240dd4bf3733f34d1687d5ad88a527fb5fe0e27175a52c21b2d43d3a48. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/HUA612201834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb285c1961f8a2ed5caefc064c0d74a7d7541bca9368a1939b26d5a02f0721c4. 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/HUA220900034.
Jó Nekem - Wallas & Gabriel B Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368d37bca9166b1a9f576c65cc3524c1d5a60732e6b0635abfd24211fecc3231. 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/HUA221200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fe2edb48fb48ab32a30afa752ce4ac3b36906a0c097ccc157fa41a55b47640. 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/HUB002000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b907c6ca457320a1dff35c6f9122e901c950eaa4b32c4e898c93f3884e397d6. 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/HUB002000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64e97821d19fd7e4842e0c2e2d6681dfa4ab03ab67d82cb351b47cb3d54e35e. 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/HUB002000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f16966c84e2bda5b3f7b0ee576ba0c20e9d9792f05d994863bf28a8e2ba0e5. 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/HUA612501508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6ef236193da78d78ca243f1caa884106fcd7017abb7fbd7f78f9af36167323. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/HUA612501507.