Group 1 Crew was an American Christian hip hop and R&B band signed to Fervent Records and Warner Bros. Records. They made their debut with the hit song "Can't Go On" on WOW Hits 2007. Soon after they
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 0xeb882ada3f937f5af053b97187c97187bb3ffe019adb1ade1b08431b73a017df. 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/39cc2a1a-1592-444c-9501-4d3b07f598ca.json and https://artists.proofprofile.net/proofs/artist/39cc2a1a-1592-444c-9501-4d3b07f598ca.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 0xc6401aa0c93113eedbac0fa8290a96af3a8f8830e320f7eb6c9e9ba8f2a901bc. 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/USWR60612449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b86af2367da9dd8b31be92ab8a51cd987fb79bdf6f39c7f50655ade02b0825. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USWR60612450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b533950a3bf765a561ee405b1308d92ba046746cc1abcbe4d9457c55e6e3f03. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USWR60611744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5cd6ae0863ea844093d39f51f59d013a0509204f919203155df70332ff013d. 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/USWR60612452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5b1b4fe831a571daf309b3b64896abe2a6f26094306b56f0c6597c7eeba91d. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USWR60612455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b422105e84cc51a2f2b1ea137efd1d0874271fd41ddfd0d7691f76416cd4369. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:47:37Z), 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/USWR60801489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85600e1bd10c133d9bed6d91f144152b7f3241095677e2cd850ec87a2a11dca5. 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/USWR60801490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e68dd56cd82de84c6ac834abed6d43ebc2d35aeb445d34d51279b6996f87bf3. 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/USWR60801488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16500ba56115bdc5b8f5b7b6bd6fc69100e13d76971384c521e618e5805f768a. 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/USWR60801496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b143f021e5985776e48277fbbf7800902cd4aebfbe6e46650140a6f10c8d6f. 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/USWR60801499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda1348ee91944c660b06ea7acab7c4f539ea3d8d028829d73f702637a3f3cb2. 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/USWR61000191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fe6ddf4457a9526a3095e040c4b4d1d9e8346878205bb12ee235fc8893cb4b. 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/USWR61000193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449d926f42e6b78c263ddad97d0864b6fbe21c65f5309cb00812caf7a65468a8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USWR61000194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bae5eda658becf7f698b26e742a553ad8ef0e3ad521d531083a04989b3fe213. 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/USWR61000195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8911bdf8544c6b2424a03ca023d46d542ba5cee3fe60117b50348b7dadda9a. 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/USWR61000196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8b0f3c7bfb833463eeadee21a96b612f5b461a3bab0c21517a911f4ec7873f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USWR61000198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0dd36b10cfd6716c645ad013a0f40da4b6dd756a980366020b9d778747299b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:33:16Z), 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/USWR61000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd41b968f52a4503f13dd354106738163349442511f8afcbf7d488c4260efe45. 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/USWR61000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff7d6f0161893bb10765b58a8da2b004b1269f79dd970fee207d1c095933549. 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/USWR61201074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37559681d544433b2510f088adba0fdcc1d9376e509a05e5a1e263de6609b0c. 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/USWR61201078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4daec0bb186c48d3e1fbf00360069bc351e11dd48021a31844cf97d1b9244da. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USWR61201081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ee8db80f149b190c3a8baea0dd150ab67294890c8b5c547816725fa10fd354. 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/USWR61201082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d9e3e417422cbcc0fd6ae18f005735892ecbc2b76e18fb15c01c79bc52776d. 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/USWR61201083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bffa6ea52a0f894cd7af6277155240d8e0c21a2f7a892533b82c0822b8cd4f. 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/USWR61201084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68e101cc0015551cc2236dea918b9831a7a687a27fa9dfc93c605c0b55f7314. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:50:56Z), 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/USWR61201085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaf3b8ed5466142b27b8f5b8ea774f7ee6a13201ab85f4b43913e86e5b57f2c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWR61201070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19ed4f178aaa1af286ff13f568ffb2907e31e128593a03ca3c9928e3373f267. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USWR61401167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdd862e97ce35d52f63caa196c43c2a7686a8ba472c84d2fca522f79be17e8d. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USWR61401169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5ca2ee878419baf5e9634b1ca7a68423c352d08b77a6c68a58b961d6d21aec. 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/USWR61401170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c3ec01db4eb763219b6e281cbb6a58ae8fa03e6ac00d487bd0fb3993cf900b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USWR61401174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcced34f5bf12cfa33995eb7dcd70a7e3988064b2ddae2c4dee0faec59405ead3. 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/USWR61600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a364563ab464521eb095ef6a589868d556aaa9cc7a1560e9e7f9130e086a334. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USWR61600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc773c824da8073a5c48bff5f186751392fad22a8477e1fb38b8dbc27a537ade. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:45:05Z), 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/USWR61600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc349d0288bb182704ea05c334855d15ed5feb1050a3559e872df6967b5b89854. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USWR61600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6dd4af1399c0a4f86a08080c08b9ab53aa7c39cd7d8c28eb5753269cdfc6ee. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMQ3X1300248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f940e7e50d27312127d2eb4b95d292a4b2d3118450f6098d37cbc012ed8e82d. 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/USWR60801493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ba539f647c3eb3b457664be7b88b45dd0805f41b2c73b54c0dbd8c98504d37. 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/USWR60612451.
SON OF GOD: Music Inspired By The Epic Motion Picture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe843bdcf43d7e6afb8b2ac7d55b09142a674bf910d659f7506ff9bc4f22547f0. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USWR61101220.
A.D. The Bible Continues: Music Inspired By the Epic NBC Television Event
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabd0f9171cb447dd197eeb96b63f96426302ac5ef7e56bd010cb983960827b9. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/USWR61402838.
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