Gigi Gryce (born George General Grice Jr.; November 28, 1925 – March 17, 1983), later in life changing his name to Basheer Qusim, was an American jazz saxophonist, flautist, clarinetist, composer, arr
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 0xb37fecb2ccc84c2b08c47685be000857dd3a67acbbe2c519d3cb009eb29e96ff. 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/67bd4615-ce10-42ed-adf6-b4b1e79d9e12.json and https://artists.proofprofile.net/proofs/artist/67bd4615-ce10-42ed-adf6-b4b1e79d9e12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gigi Gryce - Clifford Brown Sextet (Jazz Connoisseur)
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 0xfd8e0a870838f2ef6f1c7074dbdc5ef9000b7a92448bb3ba6555be3be28cb2df. 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/FRZ195301200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337b411a3539834176035a435170d8597a9050978837498ff58cc45124017dd7. 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/FRZ195301150.
It Might as Well Be Spring - Master Take 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327c38418eb53039bb1e047f418806d21c3070996da0060c0a622d6066a16203. 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/FRZ195300760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810563828765cc4dc50f16157d4cd5d228bdfd3c4139e2f22aa1f62d5e10e7cd. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FRZ195301210.
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 0xf61deff4a13b78e923eea043bb6e3ab0896cc1a5459d6d0b6166cb05d296a44d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FRZ195301290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1fbd70234aaa9ddc52c87e20f14dc662a96e27484d27a959cbb6f75c66c6a4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FRZ195301180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde4feb7771c03ddb0bd30fa6e42cfd3826bc219f3279bbb98117aebcf512340. 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/DEA311607250.
Art Farmer Quintet With Gigi Gryce (Remastered)
The Essential Jazz Colllection: Gigi Gryce and the Jazz Lab Quintet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe019370146b7b435633270c70bb3e0d0c33e512ef7265b3ea942aad76f85781. 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/GBLGL1279454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ff02b28297ea2974902557ab60dcc8b9034f433bc8f2369b95c3e0e3f26af4. 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/GBLGL1279456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8aba7caa2ace897b97f0181d9089c709229dc9c115ab7ae6842c069fa62c96. 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/GBLGL1279457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81c6aeee603c9a672f109c078bf041bb5f4cd6f9fb9fe4fb182f26ca8489988. 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/GBLGL1279458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54b626f86079fd21cfcdfe1ab8449841df81117e8d944a4c8a4b089fdba6295. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBLGL1279459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee83e951414a67e60db3e590ea9539a0444e337d3afa683a9ee8e3bc8fbd3f02. 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/USSM11401631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c955c33a3d2b8704787283159814199a30804d9642bde5e15b920bdf8eab98. 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/USSM11401633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60803a83a10b0cb95dcd4c323f642fbd590da0b193990cdf37d49f95d041bb68. 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/USSM11401763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e17d97f754c33dd5af4c84d2e841c8bb7f49a0b2247ed2328a0daa9bdffe23. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/USSM11401629.
Over the Rainbow (From "The Wizard of Oz")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e77ed1e80587c172e91a926854ed316360ca49a4ba6f468cf463fc0c5e9edd. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USSM11401630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b10427684ec340ac443c43ea70bad5c8f471cdfac51472e216a1343cd3d60a8. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USSM11401632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d0f83e251c6cebfcf942ba6c3f0e5131feca62d42ae6055323643f2216d22c. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USSM11701418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6b4cbf728de3c2144c5fca88065a8ed2f76d9ab73a135c1c9588970753d2fc. 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/JPCO05501070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15c92a41bcb5172b607d004a8597858efd2bbe87c56b15eb6935da094a54604. 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/JPCO05501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab7d6b2f1eaca43e037be6128a8cdede76718ab02fd4aaf052efa02b37a6b44. 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/JPCO05501110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170c79a31e22f754cc208088edd36848923583f6365407a3eff70f35c6377445. 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/JPCO05501120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabaad37d20851573bfd2013c7766f9e349e159f46cdb413054b1f6159afdfe30. 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/JPCO05501130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98cf822a7d11c5f5fc9210a5b7a9600c56ce63dab5ee7123d6271dd48a05a45. 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/JPCO05501140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebf93e41c965a2cd88b36ac40bf993510fbc1bf66cc7a3f8247ec32f16a0fb5. 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/JPCO05501150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93af513a57fb2d8b343b1ba03c106d95f80fe49100c73542748b0d241be7d460. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPCO05501060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72220d78b3381f1d6333e667d13db64e58f17f57446b3ab99c3f6f35ac8a1ec. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPCO05501080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cac37b29abdda4b4ff7d3054d1c759647850313dfbb667f7ce7d9b83ba63fa. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPCO05501090.