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 0x9a0bac7c40a090a7967719ba0d081011076c280e6f9900743def20fca0ba9d73. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a14a3c4-5525-45d3-a878-9636df1dbd26.json and https://artists.proofprofile.net/proofs/artist/7a14a3c4-5525-45d3-a878-9636df1dbd26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dope, Guns & Fucking In The Streets: 1988-1998 Volume 1-11
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 0x7af7dc5100994512e462e2c580278b1c69131293d05be3b7ba639d9f21b53c1a. 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/USY251525715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dac95b74bdb9b5574fe3c6c1256735bd268f2ff0a2b6f94d4e11358327b53d7. 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/USY251525745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867b927d70254d47dd6600852fb0e9d924ceadac689b29e642c0dcc49dbf094e. 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/USY251525717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29daeca4b4075df5733c80d5501b8df5f493f17043200094907bdc7de6b83520. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USY251525718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87b5b7b782e094e8b97661e6216082687d15c5531ef5aebe3ae560ddea5a2be. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USY251525722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1f4ea9d253a27f0cd52a479fc2d164d82ecfc18c629aba4b9fcd4a3a1cfbe3. 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/USY251525723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d628f99826145b8f1daee5c31e07ee91702e875c05c7380e801444b5ede377. 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/USY251525753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac5ce14ae042fbd0da4087ae4febc8c5f97f1085993cac5794f72406de8a23c. 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/USY251525755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f92beb46f8e7263701254fdcb94f2bbe3e19548c5e22c5a4764b898d8a5481a. 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/USY251525728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa89902f85d89ad41ccf99c2b7a0351d5c73fad84ec9f703fbadd7c919e64481. 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/USY251525730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28d951fd02ad9e3473e3829501157aef3738956af451d8a593c1040c3a6dc57. 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/USY251525732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fb718a978d3e30c768312f96f03dc2e4bb26fc310cf4b6bfa737e2e1f0fdf7. 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/USY251525736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7903dd4c88b171ed0e4cdacc1ed11fbe95ad40c0a49d714f354fe972440d9ba6. 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/USY251525740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3d2ad3df8991b4c2836a3800f4f767cd94acbd99f424072fd510a63564fb17. 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/USY251525743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf649cc7854c19d2a48564120b79866d834036e5e7d3f4241026867d41ac631. 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/USY251525744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe463b4f8976c9b0aed08d73d2fea087805f176e6b3d6a33f9e14d93e575804c6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USY251525746.
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 0xf51612f7c9d799ad9b9eb7cfe555f93825e319bb439f3260cd04cb0a14991306. 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/USA560446661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43d95f2851396c51ca556184c27159b4c3bb7968b4118f8994d0727057d8d38. 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/USA560446666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24cf05f962176eceb5032bfc34a0a2181327922440a4e893040598aa6408623. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USA560446662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b32c0076211ffc52740b6b9e0db11629a712768e5fb7ebcfc35afe6bb0f0b3. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USA560446664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0daca713504e7267af6d2f15d3e54f5ffddf84c3fdda446b7fa50343ab9b4db. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USA560446668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027d8cacda3d49ae64550f0ba9a1fc56f282e4f2180be742583cda55c3fbe188. 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/USA560446421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5b2aaef1697b8be6b8b02ac488a8b90a3e29c9bf48a84f1f385e805bec5540. 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/USA560446422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40211cc64f6332cc58496e3644cff453a72e9fed79633d8554d4746d4ebf84a2. 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/USA560446424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aeb1c3573be513134bdb8328e12abba0c4d039c8975d9e19d2b1d48683b293. 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/USA560446427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a8d04619ed8cf6f2cf490ee18dd1ded80eb18c07410c7f7223d42bf17d7c8a. 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/USA560446428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39340201ee1f490c0b2538df2390df5f740143fd986b3ca3f062e8bc168bfac2. 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/USA560446429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6570d0e28b80e0d1eb2ef736d971a875be2944cecd0d93e1c6f4c69c2940a083. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA560446423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2772b78aef37a0045b2b52c9a874e0bdab514b88b798faf0f91943d25aad26b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USA560446425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de7c3d2b2326004524f907efdc423ee847781b549e031b2bf9b4f2930c48a95. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USA560446426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa24c2dfc5232c8d3dc9b90e5d41b554fe09ca08dd3d66f8903648be83c80857. 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/USY252287605.
Dope Guns & Fucking In The Streets: Vol. 8-11