Fred Astaire (born Frederick Austerlitz, May 10, 1899 – June 22, 1987) was an American dancer, actor, singer, musician, choreographer, and presenter, whose career in stage, film, and television spanne
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 0x3aa727af43f93bddeefea98d483551665f21edf9c5971cedd9a159a35aa110d2. 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/50963b1c-12ea-40dc-abed-44b5ef0c2318.json and https://artists.proofprofile.net/proofs/artist/50963b1c-12ea-40dc-abed-44b5ef0c2318.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Hollywood Classics, Vol. 24: Silk Stockings & The Band Wagon – The Complete Soundtracks (feat. Fred Astaire) [Remastered 2016]
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 0xd81192e70043f87a22820eee31bb246bb9eb3d2e5fc64bae6f7b1fa4911114e3. 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/DEL111600698.
A Shine on My Shoes (From "The Band Wagon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3338d9ea5192f2b093656f3029dd1a920d0a9789c5d823d0d0ffd026d74657. 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/DEL111600701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f405320cc027b02fcba10366db6d1696ba47030120f2907c515aecc55c7ce2b. 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/DEL111600704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdccbc5c1e0ee0eaccfa11b8b94e67c4fb4fc9c3116e79c839a714eba340b638. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEL111600688.
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
Paris Loves Lovers (From "Silk Stockings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67adbd98b51f2881a15a4498bdc6678222e1d21d579d494fae7815a11326b747. 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/DEL111600689.
Stereophonic Sound (From "Silk Stockings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa925ad6b282702d13e30c909554e3515a1782b20ef8e5e8b49ec88d211f1f47. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEL111600690.
It's a Chemical Reaction, That's All and All of You (From "Silk Stockings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1cdb419083f62d424e8a4308d02d2a4b927ee0c9224b38ca1c2cabae188b52. 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/DEL111600691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc503029aa73befbb5ba9aeb354218de97d94454a167acd50ff4e7d1655dc13. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEL111600692.
Fated to Be Mated (From "Silk Stockings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778fa952a5e0f7579284fc87f1f9364a8be6f9a099bc301fd6707d12fa10ec72. 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/DEL111600695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3828218da88874b826346c9faffe970f18cc5a8f42004a6e24c65b4a64014845. 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/DEL111600702.
Dancing in the Dark (From "The Band Wagon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb653f5852aa1e63897ee82ced143d59d89b6b893136598ab6d27490fe945f15d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEL111600703.
New Sun in the Sky / I Guess, I'll Have to Change My Plans (From "The Band Wagon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f990a4a5e559a70509ecaea5fa9e413c21206b60a99c5ba6c42eecd2b698e46. 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/DEL111600705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd25238bd651af20ceded3b09c8332adc7922041d98180ffe9b82c4c3dd48550. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DEL111600707.
That's Entertainment (From "The Band Wagon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb945671ca01d21dbee78c81f115a87f9c702543d64c250791b7182c38fbdc936. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/DEL111600709.
Vintage Hollywood Classics, Vol. 3: Annie Get Your Gun - Easter Parade - The Pirate - Show Boat & Others (Original Stars, Original Soundtracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44320c546b4b9a61c1c3f0df813c9740147b45ca8fb88d5a29fea4fecf065f3f. 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/DEL111301900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefbc630d9915551399ecd38bb86fe7bdccacf2fd63747481082a6f0cc0520a8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEL111301897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fc723a3205a822b45733c3acbf37b4489745737852ac86d11ffbdfd8bdcf0a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEL111301899.
Begin the Beguine (from "Broadway Melody of 1940") - 2006 Remaster
That's Entertainment (The Ultimate Soundtrack Anthology of MGM Musicals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd35959bea7d7f9278843ad4e38b889225871d3edfb34d3a2edbf4fd4ab907a. 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/UST1C0550540.
Main Title/ That's Entertainment ("The Band Wagon" / "That's Entertainment, Pt. 2") - 2006 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c72a8e42535a95b91e97085e6a225adcdf29502fc17f3e320c93ea2652af7a. 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/UST1C0550563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618cfcdb2674b49c54c8b71b706871cf74e0c2fa579fc803dc9511711f74a8ba. 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/SEWDL5007469.
Easter Parade: Steppin' Out with My Baby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff330c3bdeca8ec02874368fa20dadbf20cef18bce7476b6e553d120781f73bd. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:58:51Z), 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/DEL111301898.
I Guess I'll Have to Change My Plan (from "The Band Wagon") - 2006 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ee92c475ff574c0f4850f747e08dde1981a6d9877678d1a65fb94144078699. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UST1C0550554.
They Can't Take That Away from Me (from "The Barkleys of Broadway") - 2006 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea01a9116b29a61538fe4989a541cf85e11103a98182cc8ff956d5d8deba034d. 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/UST1C0550553.
By Myself (from "The Band Wagon") - 2006 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04af0b177ed2d674dd7e6313eb121b3c4ec763cef25b1d620e338a09b444dff. 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/UST1C0550558.