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 0xebc776bcf3f3c0650223e66dda2f3ebca03cc1eadc2b7c4f9319bda7ac848c64. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4d34486-1ad9-4ece-9583-1d7da7e7d135.json and https://artists.proofprofile.net/proofs/artist/a4d34486-1ad9-4ece-9583-1d7da7e7d135.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 0xba58f36baefe932861247c0c344a37140d0f8da87314494b0174ba9601bac505. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZK6Q1975826.
Dick Solid and the Ratchettes Live Acoustic
At My Worst, the Very Worst of Alex Story
Born in Angel Blood 3 (Confessions of a Sadistic Heart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ede4ed3813ce4a3d6e5618025a884c4c1219dbf1b5ca86460879631d28fb9a. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:00:31Z), 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/QZHN72501332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b2dc3222e9db8c27df62acca6f25788c38d139c23ce1145b8c95838e58bd52. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHN72501333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19845d1b21a64278feccbde3d1465408a781037001600ac6fd4e53d58c3c6643. 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/QZHN72501334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7036d07758edb38dffa0c3984e29b6cdf810f5e69eea8a5f04a1f11cc501b6. 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/QZHN72501335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1233d2bdf6fb417cd0c0a3232570a351742a00075ed0c34ef1894e19d8286c58. 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/QZHN72501336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94be116d64f44716351d47a1ea8ca9b176e5dad7f78fbc356d794f4e6a74d08. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHN72501337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8b4272e587f128b2b4d4ddf612fb3d3cbcae3d80266a7e054578f5408ca272. 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/QZHN72501338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaa1b353ca5bd50d26f15aadfa6e1db874e84a3e2e374bfed92e85659a3834b. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:10:43Z), 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/QZHN72501339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1896d6157993c8cd6f712230650fa940cd6965a1b0d6d2e6bd786d8f2c7da4cf. 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/QZHN72501340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb68d8180aa542063ffffff4cc2862f6a21e3f8f8523454bbb45adb972d694bb. 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/QZHN72501341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070603c2e69076a74cf82ba31656f487d4c61621fac389f2f7ca9ba0b5d759ad. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:40:48Z), 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/QZHN72501342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1b3d9d19ab1aacfd54964dae5bf3618136883640de78ebd00902112608e12e. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZHN72501343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767baf8967eadd0e07f829d4f3ce5482e16af5a8fa4996e68e8ee821e4dbde27. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZHN72501344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b5e8d44fca3fa23b486baa091ada83973c90e4ed7809e73a3e82b53cf08884. 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/QZNWU2538201.