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 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 0x80ca6b988fb2fcba70d4534c75a35e83d697931ad9314f0e82a3feac64387abf. 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/a8be2fbf-2e43-415f-8b1c-ac90ec4a915d.json and https://artists.proofprofile.net/proofs/artist/a8be2fbf-2e43-415f-8b1c-ac90ec4a915d.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 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 0x2843a96b0209b1bb3eb27a93afd9e07206ba5f5bfa0b8853a6c442d91e0f43bf. 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/AUBEC1834722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a14dff58c75eaa51024ff16f35ab0972893e123990a5aa83fc1f987bf204ee. 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/AUBEC1835522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e307045b05e4b1d10a159da2d3589c5a5356212643e30b15ac6d78eb081a2c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUBEC1900754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433008f8f3ebcb1aef23ce384e2cb3f56553d8cd93ec5fb5457d42f887c488d7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/AUBEC1935664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9cb548919fa2d08ba332132169b61ac2fb0a53ef9cdc3d75002f645ae6d0ec. 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/AUBEC1935665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4088457e47ba1859d86ea257859307ad1fe12d017a5f5b56f702ee34059791. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/AUBEC1935660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f83c3b11833466bb86663ac17c2e3a9aaa095344fe778ffd7c3d59fb46d87c. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZDA42312090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33021a69af69cbcb8e537d8783fea4277a5d46e0116840faae48fb40f9f9fb7a. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QZES62445424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057b6662e3abc494993c81ba3a4ecc1700d16e755d7c53d38cdf405833455457. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDA42332395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c70634ce4839fec43c0f68fc2362f8ea94703a7c7da82f3bf7638dac550513e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZTB42384057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b33af12fb1f758b5a0cb25ba76d7f002a4e60c4885b4148802daa816debc82d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTB42384059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65463b6a71f95da492f543f1410d37bd6348fd16b7e6af36bce253b1b9e77ddd. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZK6K2332537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348a320a0f08af413b5933576ea15dfa5eebb16118226064986329c827e6a261. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZTAW2326833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938b7dcb2bcad0ffeb779ba01a4e02bfda61390124e578fdfab19c7a757e5109. 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/QZFYZ2454246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393909f103c17f5c2d5b76309ae8ed5e6327145ef040066f710e160aad521059. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZZ792452969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e32c58e541acb5bda3500e630677653d4d96cbf3e959d3a012e70dc5027a51e. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZZ782482965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c328742e6f9ec3bea27c7582a3a6e37b410074bb1a616a509578d72495b3d0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES62556749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf006228deb7617725fc7c33af8ccfd3516e0fb6463859738730c515398649cab. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QZES62556750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d54e7131dde35c6025d498148d87dca1d7243dbd1b5b527c135b53e9df5998. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZES62556751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cf626af29af02c6830d7bb650f9a5fd7e631c30589a356777dd4b9bbbdb2fb. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZES62556752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60933c3dd02250f7552aeb86a804672c9dbe4fd98dccbc6f6d16a242e53c477c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZES62556753.
SSRWives: The Murder of My Winter Crush (Original Soundtrack DISC 00)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a0e03e573fcbec90334a284897ef4db46605f201002b3349cacd9f1520645d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAZ2520004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e94ed67809e0b5c70ec754fbd3a65d613b823d9dcb066d6ae9acbe0fab39a1. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTAZ2520005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d0fc80b3d4873147471107e2c7b404aa16e68cda2be56a2f186a5307d889a1. 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/QZTAZ2520006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d20cb889fb6deea155bba53938abcf93648c60bda97d38f490a5a9308987c7d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTAZ2520008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d08b39a50715aa938f219898eb73b9961fc91674500234e9188287ecf3f12e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAZ2520009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00171abaf8c708ca97f0f4365369379342fa19613b5eb38d63a0fe38a62b0619. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAZ2520010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ece9a08d1cc54938712155d54746bf4748cd9cb76409ed0d594ef1f4b4197f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZTAZ2520011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75777a95469268964e0bbbb8038af9d3f7c87643af858f0db580d36e10f56137. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTAZ2520013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04baa25e1bf5e105dd38bb3e2b92f2c2a4b30ca6c5f51debe4f73002c2fc9c71. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZTAZ2520014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d7c85ce0b7e4d1b8754a386a35875807a7149322a597ea000acff94f2c6a75. 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/QZTAZ2520015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b60704024aee9be20c73ca870cd2009891545c0b12f8a65659d79c4243a84. 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/QZTAZ2520016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363ac4ba6eb4f87e8b2d4f715a5ba0a0e133e74df4ea4325246fe711ae6cd2a4. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZTAZ2520017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7536d50f0a4c4173522b49ba15caaded648f324d0d32bdf9361c556d77f91813. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZ22B2019867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6bf54d302874a4ccdbb49d9b56dd21ee0cfbc7ffbfb36b5f2df2cb1e97bff55. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/CA5KR1819043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdd847f31dc3252f633146340823624047aeccb9b80affd36aecb079a8e8082. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/CA5KR1714665.