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 0x9a1b551512e57fbd0c0cd2cf027ecf441370a699d052de94ba9387b74fadf2ae. 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/9288c3e5-0be6-496f-ac51-9c1d471c0981.json and https://artists.proofprofile.net/proofs/artist/9288c3e5-0be6-496f-ac51-9c1d471c0981.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 0x6ac76cfbd55a35d05fe4ed180c09735aab5c68abadd68729839a13111a78367a. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/QZHNB2238047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67006426475c42a47fced2e6e370c8d65a12f8f9c94d88515e0f1d9fead381d8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHNB2238051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f4e1492db083ed52e53fc75ddfdeff7a15ee2278ee7902b06abee68e8b0b5a. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZHNB2238054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cfac0415018fb533b837e17699c7b56ea69c9995bab3613c380fa97574a92e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZRP52144033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19374940915bcb0ceb30cde6075dd1fdb385755bca8e870542711fd6c408b6b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZRP52144032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768d08f053a9256fb9ae8b4ed24240fdfc3b1b30fb2b5dec2a48feb04474ab4d. 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/QZHNB2238057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ca0a35ee863cd62398f31aca0d02ac15cfa5e73146996740da720f4792a882. 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/QZHN92493083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5659caadbbcd5577c6c4efb87ff8ca1d046cc3bc030996d6192359362c92f2c5. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZDA62500355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8428c030277847a06028d780576b66a9feaab86b9eee3e1405bd2e60ed7d661f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZDA62500356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a8ad1f1d77dd54e138d9dd6a571c020761e4704ed189f364973587f6677a1e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:12Z), 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/QZDA62500358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd460357d3a56bf38f08a3f7a4373109d0856c5238914d917f1bcb01efdfc859e. 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/QZDA62500359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20732b2c824f5f3a3836bb7150a53d65817a38411ffc272a8217e772f2c4ca3. 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/QZDA62500360.
Gesang des humanoiden Axolotls in der postapokalytischen Welt, auf dem Weg in Richtung Sonnenuntergang - live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63701263b22fbeb17e5f60db4cf0ce7397d8a473239da84fe91c012cbecd4750. 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/QZDA62500361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1494e3092c4ad6256ff61837bfb054f7aeee1440b4fc1f8519d802965e5a759d. 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/QZDA62500362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bde97a71b06bfec949b79c7bc5638c4e83f10b7e22cc8f738a6916ff4c4c35a. 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/QZDA62500363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0add6b2e52d4137dd9e14ae862c524afa50c8ca71a84169a82a0f47f891b61d1. 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/QZDA62500364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa644856bac78a4ebc6023b6df263cf101e56c8a3a81428934594923426d174a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:53:40Z), 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/QZDA62500365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe478835848c65b7ebf7147a831b732314bef8c9c166c49b6b9cc68b5b497b3f2. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:47:06Z), 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/QZDA62500366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6372b6fffd6a13008d63ed4ed3070a56a1122ff40fe87e09af74d03a54eedac. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:55:52Z), 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/QZDA62500367.
Dare to Overcome the Gender Binary - live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb52dedf2549dd5f6c9bcb055b5ddf65fc0af7d8b6606010725e97f2c2e2c1b. 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/QZDA62500368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476cc44c85b91b0c57fdf1d18a0eebb08f79f4d45e4d89b92ccdba6a810f9524. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZDA62500369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a217819879847bfd3064e19bbeb4405fa6e1b25f3e105e5b6d18e9d35d30474. 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/QZDA62500370.