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 0x171e66a4c438c58425849d5eb80bd189b84ef6476d7cae45c52eb2c420ce32ad. 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/e6de8506-e8ca-4fd5-a9fc-cd02cf4bad83.json and https://artists.proofprofile.net/proofs/artist/e6de8506-e8ca-4fd5-a9fc-cd02cf4bad83.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 0xb6d40ce2e02e5cad31d0ffacf92aa35b2826c975b3cbc7b40184670b2cb87898. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/GBCQV9330027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20195a1a37f14baf9f8d702e3463f750976104bd3e9e2e71bf48ca609de9a08a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBCQV9330028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156e063cb38b31cfbd125855868401e2625331abe7328fe531a609e7318a886e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GBCQV9330029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df559b0c19880ab31c428bf307a873f994f5098d55500a3ecf224c6bb7e7dde. 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/GBCQV9330030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89971f5e05a827ee0951f15c9da0af2e5d4da8070af7c70c689cc4c68adde9a6. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBCQV9330031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69402c37b21c89ddc4343d24495795ea731aa6309bf9e3c0d9f1f32e19bc788e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBCQV9330033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a67a80efaae5af7f7531bb596c6192b48873b6061f6fd7b6ff072d616a1b21. 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/US4E40607403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f127c1f8f11ae5b1d9475f817818ae8405c08ea7ab0cc3405ff40fb7b550ed2. 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/US4E40607404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a063af7dbdbf553eb77fecd4e68192032772f96c98d23fbcd067f2a5cc4934. 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/US4E40607405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee5cc4f58b9fca329ffc740397af79a99d0edfb3bccbec9b047358cbc9c1274. 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/US4E40607406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a0d20bed7ea8b7eea7530e0d1bdaf735b4dcc49b211ec22b9e3bca8e90c335. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/US4E40607407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa022e895828f942e64d48140d794ca69d2077e37990cf8fdb393dec0f671b815. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/US4E40607408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ebdf8f247151fa991489a0f2c9c0dd29a22ed4fc43307913c81ef7820a1979. 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/US4E40607409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19db2c6c665f44191d991cd47d7ea71fa2012b245554c61ee097ce244c3771fb. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/US4E40607410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7183f5b87a7b7aa9864299d74eeea7dbbaf68499eef79b87bb4276d1f44539cd. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/US2420708402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151cad2dfbbadaec5e1847d82c5d3368a7ced62e3f17d28da2fb9609ff440d80. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US2420708403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadde5302463c08484efa3b53d923f7ad81f2d191ca112fd19ea7ee0c1fcc05b1. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/US2420708406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cb6232a87adb3d65959a34ab0487b9ba4b7cb63ce226243799e0792977a26e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/GBADD1225401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26da8fcd2b619351823b285147b28decfdbb5586dd87009a9701726be4cfc28c. 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/GBADD1225402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a00e791b24a64b263ba6ed7bb45b218df3d8eb2b618a696917c0c856ad8a55. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/GBADD1225403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bfe0de5b3c410731a0e189fc70817d78a36ef45fe4307589d8ec714772b07b. 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/GBADD1225404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde808264865a841169a0b9676d7d470115ed7da2b43fb249f54d8b7208f20ab3. 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/GBADD1225405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d25bcd3cb8f1c57f4895f6bf6910144aa41c723e986d251b63b7f50c8e4db6. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/GBADD1225406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c728041d1c84feaeeac8ba1766f80e879627bbd5034b906697ac30c11114cae. 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/GBADD1547303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8b23a37d34d7c2daa2eee11a581d1c184e1307e67f95541014b617979bbd70. 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/GBUM71804712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371a5d1c1efefe02891141a33a3225947b52d729ce0740821aeb185ee6ff9706. 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/GBUM71804714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51898b2c363ee88d7b828c4ec03b0ec10c8d2e0b4c60b3ea754074755894546. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBUM71804715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7853b849a069ec3466ece07b888bbee53199779ff53d067ced3dc71542598a. 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/GBUM71804716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02649529aa6ede39a014b71b85c5dcc24ff2c5351889be5788058318c87cfe0. 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/GBUM71804719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a358de53da5e533c67cc0103ee962c27799d4b492d2bf357ade41e00d0b77e4. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GBUM71804720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66d9a6a1a5aa709e30998dc42e6f3dd39f20c271a1374211e3f68e2f1636b74. 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/GBCQV2101139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94edce10b04715155fcf90b1fb5f53ac7c3a51a78e081928e1bb9c3b4d24509b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBCQV2101140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd2623cc72814dc34e5a8fcb0ed96ed9c9a4ab88120ed0eaf0903e513527d60. 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/GBCQV2101141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100ab72488d6f8b4d1bebfa592a08685e082b4cfecd8a055334c8d5ce4b950d6. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBCQV2101142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa444ba84b3110f70929107cb950ed7a3a3666fbd00371f90edff11d9c8c55d7e. 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/GBCQV2101143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41e5349d595ed207ea65f43181c158543cdfed49355b43276ccc7bad672a825. 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/GBCQV2101144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474cd0590673d69caa04cbe50276d18c700a5f9ab6bf6f1d2d609ca37992f291. 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/GBCQV2101145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fed0654e79f5bc08ea7bc924c30bf21eafbdc47f6144861cd39cb6891b778f9. 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/GBCQV2101146.
I Saw The World's End (Hangman's Hymn MMXXV Rerecorded)
I Saw the World’s End –Hangman’s Hymn MMXXV
I Saw The World's End (Hangman's Hymn MMXXV Recorded)
Dark Side of the Sacred Star (Peaceville Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20195a1a37f14baf9f8d702e3463f750976104bd3e9e2e71bf48ca609de9a08a. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBCQV9330028.