The San Francisco Symphony, founded in 1911,"Hot time at San Francisco Symphony gala". SF Gate, By Tony Bravo September 9, 2016 is an American orchestra based in San Francisco, California. Since 1980
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 0x959779d6c5ed2b616e518b5f23a2a6ab71a7eff3238387e5605f17b9ea74fe7a. 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/3c127232-a653-414c-a3a7-bc19cb713313.json and https://artists.proofprofile.net/proofs/artist/3c127232-a653-414c-a3a7-bc19cb713313.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 0x76d5be4f9d456a282278e4c215e16ae44deec593932c11d1add870e501f01727. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMKHM1900330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c50c73dd8dc091823911c24ca55b791e65a9d128b1ffe1933c48f17d3def6a5. 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/QMKHM1900334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76dfd3377a2994e1e46e8638f54f5b9b4e38f206d0f8d9c4660018c18c6b3b84. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMKHM2000084.
Nothing Else Matters - Live / Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7825b7d2ed63eb63b95ba204a5f83c531571dd4c06dfcfd5f21afb4837ce2941. 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/QMKHM2000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b0fa058f9fc3595a061eea90832b90e18f6d42ab141c3583c7792939a384e9. 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/QMKHM1900343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d7a966b908d34064651ed21402b02ac15ff420c8d8faea702161ebb2e8f95a. 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/QMKHM1900348.
Saint-Saëns: Symphony No.3 / Widor: Symphony No.6 - Allegro
Symphony No. 3 in C Minor, Op. 78, R.176 - "Organ Symphony": 2b. Maestoso - Più allegro - Molto allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516a1baaf0bad9ca770637853eb679074d0dbd12c26bf44c18c242032fc17880. 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/NLA508400904.
Symphony No. 3 in C Minor, Op. 78, R.176 - "Organ Symphony": 1a. Adagio - Allegro moderato -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5439e87d6485c8547541eb277124e4937bdf9910f5eef828e8e6af47402bb254. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/NLA508400901.
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
Symphony No. 3 in C Minor, Op. 78, R.176 - "Organ Symphony": 1b. Poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1fd5de5010de87605a8de3481c03c4397ba8f1312d82f8382694163b24c2bb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NLA508400902.
Thomas: Meditations on Rilke: No. 5, Imaginärer Lebenslauf
Grace: The Music of Michael Tilson Thomas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226a6fe11653209c7c19f9d15367a2819b9fc844ea4a576e096ef0f162ed3698. 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/NLE422435501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdb68a6ea1ed4f7a31c36235e3a55c4d8d0ac674baee748f4966fd80db3c7df. 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/NLE422435502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46139cd546907c03fdebc3d9372ee68996be8e98d31d3d7f29fae49cb7dc159d. 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/NLE422435519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a82eaef65a24f313fad9a8d7db29a0f07465fa6b0b95d7941c6bf347ef283c. 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/NLE422435520.
From the Diary of Anne Frank, Pt. 1: It's an odd idea…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e0921b42b0f6613e8044c22f867b105aed7d02ff948850850fe80cfc740a00. 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/NLE422435508.
From the Diary of Anne Frank, Pt. 1: There is a saying…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217327dc507b5e520d5928c2317017f5e8d0fbda28ef1818f7359d9f3e4a1b97. 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/NLE422435509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f17cbd9ea8c3718bbc2cccffb7c2cb937a78c138a2a5e20ab337cce63b2c727. 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/NLE422435518.
From the Diary of Anne Frank, Pt. 1: Instrumental Intro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb592dad600a102fd31e81f14fb48d0a3b4452395d6bab2492f9ec90ab48c4b2a. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/NLE422435506.
From the Diary of Anne Frank, Pt. 1: I hope I shall be able to confide…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71ef6b781cb3ac57844010ecda6ca7d13b75c1682b53d67acfe4d1a05f33b8f. 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/NLE422435507.
Symphony No. 9 in D Minor, Op. 125: IV. Presto - Allegro molto assai - Andante maestoso - Allegro energico, sempre ben marcato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d8b48d7f42387509ee950647b2f31a30049e7e5d13ad1da202969957c0625e. 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/ATEXZ1201045.
Aladdin - Concert Suite: 2. Aladdin's Dream and Dance of the Morning Mist - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91507f18eb00f3323519f6143627779811f3e7939e6c3b6bd634b0224e871fe. 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/GBBBA8950140.