thumb|right|Maya Beiser in 2006 Maya Beiser (born 31 December 1963) is an American musician, cellist, performing artist and producer who lives in New York City. Beiser was raised on a kibbutz in Israe
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 0x0530bd20164dfb52c477baa70d49f98a230f6c8dc3422e623939e708d253fd0a. 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/10982e02-877c-4930-a400-466b2ec2be94.json and https://artists.proofprofile.net/proofs/artist/10982e02-877c-4930-a400-466b2ec2be94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beiser, Maya: World To Come - Music Of Land; Part; Tavener & Golijov
Orchestral Suite No. 3 in D Major, BWV 1068: II. Air ("On a G String") [Arr. M. Beiser for Cello & Electronics]
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 0xe0bdd47223364de13c52c9447e7ad53b30165f596526783cd73f4567a0d56332. 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/US29K1695201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8713f136e05d5ed02848961df9398c9cb45fef67d10d5de5c7f9c0a48de6c074. 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/US29K1695202.
Hide and Seek (Arr. M. Beiser for Voice, Cello & Electronics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f783204c927d55c60b9295e60375f8629b41681565e91cc8185c475748830ee. 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/US29K1695203.
Heroin (Arr. D. Lang for Voice, Cello & Electronics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed46c8146dc3eb701cf8c512a575162c325878781b434d98a4e041ef397d3688. 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/US29K1695205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2458d8ff2f9a2d2b9aea634fc133533e47856d942e18c0c39f03256943d3a18. 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/US29K1695206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd88e3e2577a3bb8bbd971abccbd472a1f9202825f3ba5af238836d3d4eef8d6. 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/US29K1695207.
O Virtus Sapientae (Arr. M. Beiser for Cello & Electronics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68278897ed991910e0ae2427256f4293ba7d96ce957f5a0e5441ed01621a5bcf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US29K1695209.
Moonlight Sonata: Adagio (Recomposed by Maya Beiser)
Water (From "Fête des belles eaux") [Recomposed by Maya Beiser]
Slow Seasons: Summer. Adagio (Recomposed by Maya Beiser)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc3774dcdb36da131c83d8de3e7341bb5b45f1e97c0262137498a0a3057fcea. 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/QZHAJ2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8848f35a852c9a13a2f46facceda9fc7b5ba5a88e9b1f3431afaab9e65fa441d. 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/QZHAJ2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a8f8af7f433506fed10b19171e87714f9290ffe8c3394df5a97d4f9907591d. 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/QZHAJ2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9267c2e9e750d588c7777104605283e0a7acf0d4a924c713be8f8e264964a44b. 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/QZHAJ2000010.
Ludwig van BadGuy (After Beethoven & Billie Eilish)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea20e2120824a4b3b24594f7fc1e308f6428f21a516737d2670f99e16a91519. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US29K1077802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8943d58e0d13f57fa892dbf0878ee135628b2586fb90b92948dd545c71ad8d. 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/USNO10589105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cbbb78c9c4f082a6b5907fb9a8e1dd06c15df0f93647e8a88b4807203ce4a6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USKO10302766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1c915401a0e9dd2994c289cb4fa45581eb76c2846f1e0b2f20b31e82366b6e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USKO10302767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a130f4e72dd3503b601f2aefbeb4d6f22eb9a12b0f5366177bb582b0e5a84e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USKO10302768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3aff3d98949d1f7ec69165b149b403227c73395e31e2b1717a3d38fa316d2e. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USKO10302769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a0200076c38720dbe37c6f10e0f305c3acd96bb29a961b9d44a807a303ed8a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USKO10302770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb19c456934ac43cf52b8cdef5c5d11db417044d8f73020256c32eedf8e76b2. 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/USKO10302771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf256d8a2f0eba048a384591c590943ff9abb134372dac49c9c4c9a44e25ddb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USKO10302772.